DEMO_febio_0033_sphere_tube_slide_body_force

Below is a demonstration for:

Contents

Keywords

clear; close all; clc;

Plot settings

fontSize=15;
faceAlpha1=0.8;
faceAlpha2=0.3;
markerSize=40;
lineWidth=3;

Control parameters

% Path names
defaultFolder = fileparts(fileparts(mfilename('fullpath')));
savePath=fullfile(defaultFolder,'data','temp');

% Defining file names
febioFebFileNamePart='tempModel';
febioFebFileName=fullfile(savePath,[febioFebFileNamePart,'.feb']); %FEB file name
febioLogFileName=[febioFebFileNamePart,'.txt']; %FEBio log file name
febioLogFileName_disp=[febioFebFileNamePart,'_disp_out.txt']; %Log file name for exporting displacement

% Sphere parameters
sphereRadius=5;
pointSpacing=0.4;

% Ground plate parameters
tubeRadius=0.8*sphereRadius;
inletRadius=tubeRadius/3;
tubeLength=sphereRadius*6;

% Material parameter set
materialType=1;
c1=0.1e-3; %Shear-modulus-like parameter
m1=2; %Material parameter setting degree of non-linearity
k_factor=10; %Bulk modulus factor
k=c1*k_factor; %Bulk modulus
g1=2; %Viscoelastic QLV proportional coefficient
t1=150; %Viscoelastic QLV time coefficient

%Setting material density
materialDensity=1e-9; %Density

% FEA control settings
timeTotal=1; %Total simulation time
numTimeSteps=40; %Number of time steps desired
max_refs=20; %Max reforms
max_ups=0; %Set to zero to use full-Newton iterations
opt_iter=6; %Optimum number of iterations
max_retries=5; %Maximum number of retires
dtmin=(timeTotal/numTimeSteps)/100; %Minimum time step size
dtmax=timeTotal/(numTimeSteps); %Maximum time step size
symmetric_stiffness=0;
min_residual=1e-20;
analysisType='DYNAMIC';

runMode='external';% 'internal' or 'external'

%Contact parameters
contactPenalty=50;
fric_coeff=0.25;
laugon=0;
minaug=1;
maxaug=10;

%Specifying load
sphereVolume=4/3*(pi*sphereRadius^3); %Sphere Volume in mm^3
sphereMass=sphereVolume.*materialDensity; %Sphere mass in tonne
sphereSectionArea=pi*sphereRadius^2;
bodyLoadMagnitude=(9.81*sphereMass*1000)*6500000;

forceBodyLoad=sphereMass.*bodyLoadMagnitude;
stressBodyLoad=forceBodyLoad/sphereSectionArea;

Creating model geometry and mesh

Creating a solid hexahedral mesh sphere

%Control settings
optionStruct.sphereRadius=sphereRadius;
optionStruct.coreRadius=sphereRadius.*0.75;
optionStruct.numElementsCore=ceil((sphereRadius/2)/pointSpacing);
optionStruct.numElementsMantel=ceil((sphereRadius-optionStruct.coreRadius)/(2*pointSpacing));
optionStruct.makeHollow=0;
optionStruct.outputStructType=2;

%Creating sphere
[meshOutput]=hexMeshSphere(optionStruct);

% Access model element and patch data
Fb_blob=meshOutput.facesBoundary;
Cb_blob=meshOutput.boundaryMarker;
V_blob=meshOutput.nodes;
E_blob=meshOutput.elements;

Visualize mesh

hFig=cFigure;
subplot(1,2,1); hold on;
title('Boundary surfaces','FontSize',fontSize);
gpatch(Fb_blob,V_blob,Cb_blob,'k',0.5);
% patchNormPlot(Fb,V);
axisGeom(gca,fontSize);
colormap(gjet); icolorbar;
camlight headlight;

hs=subplot(1,2,2); hold on;
title('Cut view of solid mesh','FontSize',fontSize);
optionStruct.hFig=[hFig hs];
gpatch(Fb_blob,V_blob,'kw','none',0.25);
meshView(meshOutput,optionStruct);
axisGeom(gca,fontSize);
drawnow;

Creating tube model

pointSpacingTube=mean(patchEdgeLengths(Fb_blob,V_blob))/2;
t=linspace(-0.1*pi,pi,100);
x=inletRadius*sin(t);
y=inletRadius*cos(t);
V_curve_tube=[x(:) y(:) zeros(size(x(:)))];
V_curve_tube(:,1)=V_curve_tube(:,1)-inletRadius;
V_curve_tube(:,2)=V_curve_tube(:,2)+inletRadius+tubeRadius;
V_curve_tube(end+1,:)=[-tubeLength tubeRadius 0];
V_curve_tube(end+1,:)=[-tubeLength tubeRadius/6 0];
nResample=ceil(max(pathLength(V_curve_tube))./pointSpacingTube);
V_curve_tube=evenlySampleCurve(V_curve_tube,nResample,'pchip',0);

cPar.closeLoopOpt=1;
cPar.numSteps=[]; %If empty the number of steps is derived from point spacing of input curve
cPar.w=[1 0 0];
[F_tube,V_tube]=polyRevolve(V_curve_tube,cPar);
V_tube(:,1)=V_tube(:,1)-sphereRadius;

d=0.1; %Tube placement increment/tolerance
while 1
    R=sqrt(sum(V_tube.^2,2)); %Get current radii
    if min(R)<sphereRadius %If the tube is in the sphere space
        break
    else %If not in sphere space
        V_tube(:,1)=V_tube(:,1)+d; %Shift a bit
    end
end
center_of_mass_tube=mean(V_tube,1);

Visualization

cFigure; hold on;
gtitle('The surface meshes',fontSize);
gpatch(Fb_blob,V_blob,'kw','none',0.5);
gpatch(F_tube,V_tube,'bw','none',0.5);
% patchNormPlot(F_tube,V_tube);
axisGeom(gca,fontSize);
camlight headlight;
drawnow;

Join model node sets

V=[V_blob; V_tube; ];
F_tube=F_tube+size(V_blob,1);

Visualizing model

cFigure; hold on;
gtitle('Model components',fontSize);
hl(1)=gpatch(Fb_blob,V,'rw','k',0.8);
hl(2)=gpatch(F_tube,V,'bw','k',0.8);
legend(hl,{'Blob','Tube'}); clear hl;
axisGeom(gca,fontSize);
camlight headlight;
drawnow;

Get contact surfaces

F_contact_secondary=Fb_blob;

Visualize contact surfaces

cFigure; hold on;
title('The contact pair','fontsize',fontSize);
hl(1)=gpatch(F_tube,V,'rw','k',1);
patchNormPlot(F_tube,V);
hl(2)=gpatch(F_contact_secondary,V,'gw','k',1);
patchNormPlot(F_contact_secondary,V);
legend(hl,{'Secondary','Primary'}); clear hl;
axisGeom(gca,fontSize);
camlight headlight;
drawnow;

Defining the FEBio input structure

See also febioStructTemplate and febioStruct2xml and the FEBio user manual.

%Get a template with default settings
[febio_spec]=febioStructTemplate;

%febio_spec version
febio_spec.ATTR.version='4.0';

%Module section
febio_spec.Module.ATTR.type='solid';

%Control section
febio_spec.Control.analysis=analysisType;
febio_spec.Control.time_steps=numTimeSteps;
febio_spec.Control.step_size=timeTotal/numTimeSteps;
febio_spec.Control.solver.max_refs=max_refs;
febio_spec.Control.solver.qn_method.max_ups=max_ups;
febio_spec.Control.solver.symmetric_stiffness=symmetric_stiffness;
febio_spec.Control.time_stepper.dtmin=dtmin;
febio_spec.Control.time_stepper.dtmax=dtmax;
febio_spec.Control.time_stepper.max_retries=max_retries;
febio_spec.Control.time_stepper.opt_iter=opt_iter;

%Material section
materialName1='Material1';
febio_spec.Material.material{1}.ATTR.name=materialName1;
switch materialType
    case 0
        febio_spec.Material.material{1}.ATTR.type='Ogden unconstrained';
        febio_spec.Material.material{1}.ATTR.id=1;
        febio_spec.Material.material{1}.c1=c1;
        febio_spec.Material.material{1}.m1=m1;
        febio_spec.Material.material{1}.c2=c1;
        febio_spec.Material.material{1}.m2=-m1;
        febio_spec.Material.material{1}.cp=k;
        febio_spec.Material.material{1}.density=materialDensity;
    case 1
        %Viscoelastic part
        febio_spec.Material.material{1}.ATTR.type='viscoelastic';
        febio_spec.Material.material{1}.ATTR.id=1;
        febio_spec.Material.material{1}.g1=g1;
        febio_spec.Material.material{1}.t1=t1;
        febio_spec.Material.material{1}.density=materialDensity;

        %Elastic part
        febio_spec.Material.material{1}.elastic{1}.ATTR.type='Ogden unconstrained';
        febio_spec.Material.material{1}.elastic{1}.c1=c1;
        febio_spec.Material.material{1}.elastic{1}.m1=m1;
        febio_spec.Material.material{1}.elastic{1}.c2=c1;
        febio_spec.Material.material{1}.elastic{1}.m2=-m1;
        febio_spec.Material.material{1}.elastic{1}.cp=k;
        febio_spec.Material.material{1}.elastic{1}.density=materialDensity;
end

materialName2='Material2';
febio_spec.Material.material{2}.ATTR.name=materialName2;
febio_spec.Material.material{2}.ATTR.type='rigid body';
febio_spec.Material.material{2}.ATTR.id=2;
febio_spec.Material.material{2}.density=1;
febio_spec.Material.material{2}.center_of_mass=center_of_mass_tube;

%Mesh section
% -> Nodes
febio_spec.Mesh.Nodes{1}.ATTR.name='nodeSet_all'; %The node set name
febio_spec.Mesh.Nodes{1}.node.ATTR.id=(1:size(V,1))'; %The node id's
febio_spec.Mesh.Nodes{1}.node.VAL=V; %The nodel coordinates

% -> Elements
partName1='Part1';
febio_spec.Mesh.Elements{1}.ATTR.name=partName1; %Name of this part
febio_spec.Mesh.Elements{1}.ATTR.type='hex8'; %Element type
febio_spec.Mesh.Elements{1}.elem.ATTR.id=(1:1:size(E_blob,1))'; %Element id's
febio_spec.Mesh.Elements{1}.elem.VAL=E_blob; %The element matrix

partName2='Part2';
febio_spec.Mesh.Elements{2}.ATTR.name=partName2; %Name of this part
febio_spec.Mesh.Elements{2}.ATTR.type='quad4'; %Element type
febio_spec.Mesh.Elements{2}.elem.ATTR.id=size(E_blob,1)+(1:1:size(F_tube,1))'; %Element id's
febio_spec.Mesh.Elements{2}.elem.VAL=F_tube; %The element matrix

% -> Surfaces
surfaceName1='contactSurface1';
febio_spec.Mesh.Surface{1}.ATTR.name=surfaceName1;
febio_spec.Mesh.Surface{1}.quad4.ATTR.id=(1:1:size(F_tube,1))';
febio_spec.Mesh.Surface{1}.quad4.VAL=F_tube;

surfaceName2='contactSurface2';
febio_spec.Mesh.Surface{2}.ATTR.name=surfaceName2;
febio_spec.Mesh.Surface{2}.quad4.ATTR.id=(1:1:size(F_contact_secondary,1))';
febio_spec.Mesh.Surface{2}.quad4.VAL=F_contact_secondary;

% -> Surface pairs
contactPairName='Contact1';
febio_spec.Mesh.SurfacePair{1}.ATTR.name=contactPairName;
febio_spec.Mesh.SurfacePair{1}.primary=surfaceName2;
febio_spec.Mesh.SurfacePair{1}.secondary=surfaceName1;

%MeshDomains section
febio_spec.MeshDomains.SolidDomain.ATTR.name=partName1;
febio_spec.MeshDomains.SolidDomain.ATTR.mat=materialName1;

febio_spec.MeshDomains.ShellDomain.ATTR.name=partName2;
febio_spec.MeshDomains.ShellDomain.ATTR.mat=materialName2;

%Loads section
% -> Body load
febio_spec.Loads.body_load.ATTR.type='const';
febio_spec.Loads.body_load.x.ATTR.lc=1;
febio_spec.Loads.body_load.x.VAL=bodyLoadMagnitude;
febio_spec.Loads.body_load.y.ATTR.lc=1;
febio_spec.Loads.body_load.y.VAL=0;
febio_spec.Loads.body_load.z.ATTR.lc=1;
febio_spec.Loads.body_load.z.VAL=0;

%Rigid section
% ->Rigid body fix boundary conditions
febio_spec.Rigid.rigid_bc{1}.ATTR.name='RigidFix_1';
febio_spec.Rigid.rigid_bc{1}.ATTR.type='rigid_fixed';
febio_spec.Rigid.rigid_bc{1}.rb=2;
febio_spec.Rigid.rigid_bc{1}.Rx_dof=1;
febio_spec.Rigid.rigid_bc{1}.Ry_dof=1;
febio_spec.Rigid.rigid_bc{1}.Rz_dof=1;
febio_spec.Rigid.rigid_bc{1}.Ru_dof=1;
febio_spec.Rigid.rigid_bc{1}.Rv_dof=1;
febio_spec.Rigid.rigid_bc{1}.Rw_dof=1;

%Contact section
febio_spec.Contact.contact{1}.ATTR.type='sliding-elastic';
febio_spec.Contact.contact{1}.ATTR.surface_pair=contactPairName;
febio_spec.Contact.contact{1}.two_pass=0;
febio_spec.Contact.contact{1}.laugon=laugon;
febio_spec.Contact.contact{1}.tolerance=0.2;
febio_spec.Contact.contact{1}.gaptol=0;
febio_spec.Contact.contact{1}.minaug=minaug;
febio_spec.Contact.contact{1}.maxaug=maxaug;
febio_spec.Contact.contact{1}.search_tol=0.01;
febio_spec.Contact.contact{1}.search_radius=0.1*sqrt(sum((max(V,[],1)-min(V,[],1)).^2,2));
febio_spec.Contact.contact{1}.symmetric_stiffness=0;
febio_spec.Contact.contact{1}.auto_penalty=1;
febio_spec.Contact.contact{1}.penalty=contactPenalty;
febio_spec.Contact.contact{1}.fric_coeff=fric_coeff;

%LoadData section
% -> load_controller
febio_spec.LoadData.load_controller{1}.ATTR.name='LC1';
febio_spec.LoadData.load_controller{1}.ATTR.id=1;
febio_spec.LoadData.load_controller{1}.ATTR.type='loadcurve';
febio_spec.LoadData.load_controller{1}.interpolate='LINEAR';
%febio_spec.LoadData.load_controller{1}.extend='CONSTANT';
febio_spec.LoadData.load_controller{1}.points.pt.VAL=[0 0; 1 1];

%Output section
% -> log file
febio_spec.Output.logfile.ATTR.file=febioLogFileName;
febio_spec.Output.logfile.node_data{1}.ATTR.file=febioLogFileName_disp;
febio_spec.Output.logfile.node_data{1}.ATTR.data='ux;uy;uz';
febio_spec.Output.logfile.node_data{1}.ATTR.delim=',';
febio_spec.Output.logfile.node_data{1}.VAL=1:size(V,1);

% Plotfile section
febio_spec.Output.plotfile.compression=0;

Quick viewing of the FEBio input file structure

The febView function can be used to view the xml structure in a MATLAB figure window.

febView(febio_spec); %Viewing the febio file

Exporting the FEBio input file

Exporting the febio_spec structure to an FEBio input file is done using the febioStruct2xml function.

febioStruct2xml(febio_spec,febioFebFileName); %Exporting to file and domNode

Running the FEBio analysis

To run the analysis defined by the created FEBio input file the runMonitorFEBio function is used. The input for this function is a structure defining job settings e.g. the FEBio input file name. The optional output runFlag informs the user if the analysis was run succesfully.

febioAnalysis.run_filename=febioFebFileName; %The input file name
febioAnalysis.run_logname=febioLogFileName; %The name for the log file
febioAnalysis.disp_on=1; %Display information on the command window
febioAnalysis.runMode=runMode;

[runFlag]=runMonitorFEBio(febioAnalysis);%START FEBio NOW!!!!!!!!
 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-------->    RUNNING/MONITORING FEBIO JOB    <-------- 20-Apr-2023 17:57:39
FEBio path: /home/kevin/FEBioStudio2/bin/febio4
# Attempt removal of existing log files                20-Apr-2023 17:57:39
 * Removal succesful                                   20-Apr-2023 17:57:39
# Attempt removal of existing .xplt files              20-Apr-2023 17:57:39
 * Removal succesful                                   20-Apr-2023 17:57:39
# Starting FEBio...                                    20-Apr-2023 17:57:39
  Max. total analysis time is: Inf s
 * Waiting for log file creation                       20-Apr-2023 17:57:39
   Max. wait time: 30 s
 * Log file found.                                     20-Apr-2023 17:57:40
# Parsing log file...                                  20-Apr-2023 17:57:40
    number of iterations   : 6                         20-Apr-2023 17:57:41
    number of reformations : 6                         20-Apr-2023 17:57:41
    number of iterations   : 5                         20-Apr-2023 17:57:43
    number of reformations : 5                         20-Apr-2023 17:57:43
------- converged at time : 0.05                       20-Apr-2023 17:57:43
    number of iterations   : 5                         20-Apr-2023 17:57:44
------- converged at time : 0.075                      20-Apr-2023 17:57:44
    number of iterations   : 5                         20-Apr-2023 17:57:45
    number of reformations : 5                         20-Apr-2023 17:57:45
------- converged at time : 0.1                        20-Apr-2023 17:57:45
    number of iterations   : 6                         20-Apr-2023 17:57:46
    number of reformations : 6                         20-Apr-2023 17:57:46
------- converged at time : 0.125                      20-Apr-2023 17:57:46
    number of iterations   : 5                         20-Apr-2023 17:57:47
    number of reformations : 5                         20-Apr-2023 17:57:47
------- converged at time : 0.15                       20-Apr-2023 17:57:47
    number of iterations   : 6                         20-Apr-2023 17:57:49
    number of reformations : 6                         20-Apr-2023 17:57:49
------- converged at time : 0.175                      20-Apr-2023 17:57:49
    number of iterations   : 6                         20-Apr-2023 17:57:50
------- converged at time : 0.2                        20-Apr-2023 17:57:50
    number of iterations   : 6                         20-Apr-2023 17:57:51
    number of reformations : 6                         20-Apr-2023 17:57:51
------- converged at time : 0.225                      20-Apr-2023 17:57:51
    number of iterations   : 7                         20-Apr-2023 17:57:52
    number of reformations : 7                         20-Apr-2023 17:57:52
------- converged at time : 0.25                       20-Apr-2023 17:57:52
    number of iterations   : 7                         20-Apr-2023 17:57:54
    number of reformations : 7                         20-Apr-2023 17:57:54
------- converged at time : 0.273164                   20-Apr-2023 17:57:54
    number of iterations   : 8                         20-Apr-2023 17:57:55
    number of reformations : 8                         20-Apr-2023 17:57:55
------- converged at time : 0.294628                   20-Apr-2023 17:57:55
    number of iterations   : 7                         20-Apr-2023 17:57:57
    number of reformations : 7                         20-Apr-2023 17:57:57
------- converged at time : 0.31325                    20-Apr-2023 17:57:57
    number of iterations   : 8                         20-Apr-2023 17:57:59
    number of reformations : 8                         20-Apr-2023 17:57:59
------- converged at time : 0.33051                    20-Apr-2023 17:57:59
    number of iterations   : 8                         20-Apr-2023 17:58:01
    number of reformations : 8                         20-Apr-2023 17:58:01
------- converged at time : 0.34549                    20-Apr-2023 17:58:01
    number of iterations   : 7                         20-Apr-2023 17:58:02
    number of reformations : 7                         20-Apr-2023 17:58:02
------- converged at time : 0.358497                   20-Apr-2023 17:58:02
    number of iterations   : 9                         20-Apr-2023 17:58:05
    number of reformations : 9                         20-Apr-2023 17:58:05
------- converged at time : 0.370558                   20-Apr-2023 17:58:05
    number of iterations   : 6                         20-Apr-2023 17:58:06
    number of reformations : 6                         20-Apr-2023 17:58:06
------- converged at time : 0.380451                   20-Apr-2023 17:58:06
    number of iterations   : 8                         20-Apr-2023 17:58:08
    number of reformations : 8                         20-Apr-2023 17:58:08
------- converged at time : 0.390344                   20-Apr-2023 17:58:08
    number of iterations   : 6                         20-Apr-2023 17:58:09
    number of reformations : 6                         20-Apr-2023 17:58:09
------- converged at time : 0.398946                   20-Apr-2023 17:58:09
    number of iterations   : 7                         20-Apr-2023 17:58:10
    number of reformations : 7                         20-Apr-2023 17:58:10
------- converged at time : 0.407547                   20-Apr-2023 17:58:10
    number of iterations   : 6                         20-Apr-2023 17:58:12
    number of reformations : 6                         20-Apr-2023 17:58:12
------- converged at time : 0.415529                   20-Apr-2023 17:58:12
    number of iterations   : 5                         20-Apr-2023 17:58:13
    number of reformations : 5                         20-Apr-2023 17:58:13
------- converged at time : 0.423511                   20-Apr-2023 17:58:13
    number of reformations : 6                         20-Apr-2023 17:58:15
------- converged at time : 0.433117                   20-Apr-2023 17:58:15
    number of iterations   : 6                         20-Apr-2023 17:58:17
    number of reformations : 6                         20-Apr-2023 17:58:17
------- converged at time : 0.442723                   20-Apr-2023 17:58:17
    number of iterations   : 6                         20-Apr-2023 17:58:18
    number of reformations : 6                         20-Apr-2023 17:58:18
------- converged at time : 0.45233                    20-Apr-2023 17:58:18
    number of iterations   : 5                         20-Apr-2023 17:58:19
    number of reformations : 5                         20-Apr-2023 17:58:19
    number of iterations   : 6                         20-Apr-2023 17:58:20
    number of reformations : 6                         20-Apr-2023 17:58:20
------- converged at time : 0.473011                   20-Apr-2023 17:58:20
    number of iterations   : 5                         20-Apr-2023 17:58:21
    number of reformations : 5                         20-Apr-2023 17:58:21
------- converged at time : 0.484087                   20-Apr-2023 17:58:21
    number of iterations   : 5                         20-Apr-2023 17:58:22
    number of reformations : 5                         20-Apr-2023 17:58:22
------- converged at time : 0.496491                   20-Apr-2023 17:58:22
    number of iterations   : 5                         20-Apr-2023 17:58:23
    number of reformations : 5                         20-Apr-2023 17:58:23
    number of iterations   : 5                         20-Apr-2023 17:58:25
    number of reformations : 5                         20-Apr-2023 17:58:25
------- converged at time : 0.524792                   20-Apr-2023 17:58:25
    number of iterations   : 5                         20-Apr-2023 17:58:26
    number of reformations : 5                         20-Apr-2023 17:58:26
------- converged at time : 0.54047                    20-Apr-2023 17:58:26
    number of iterations   : 6                         20-Apr-2023 17:58:27
    number of reformations : 6                         20-Apr-2023 17:58:27
------- converged at time : 0.557037                   20-Apr-2023 17:58:27
    number of iterations   : 5                         20-Apr-2023 17:58:28
    number of reformations : 5                         20-Apr-2023 17:58:28
------- converged at time : 0.573605                   20-Apr-2023 17:58:28
    number of iterations   : 5                         20-Apr-2023 17:58:29
    number of reformations : 5                         20-Apr-2023 17:58:29
------- converged at time : 0.590977                   20-Apr-2023 17:58:29
    number of iterations   : 5                         20-Apr-2023 17:58:31
    number of reformations : 5                         20-Apr-2023 17:58:31
------- converged at time : 0.609077                   20-Apr-2023 17:58:31
    number of iterations   : 5                         20-Apr-2023 17:58:32
    number of reformations : 5                         20-Apr-2023 17:58:32
------- converged at time : 0.627836                   20-Apr-2023 17:58:32
    number of iterations   : 5                         20-Apr-2023 17:58:33
    number of reformations : 5                         20-Apr-2023 17:58:33
------- converged at time : 0.647191                   20-Apr-2023 17:58:33
    number of iterations   : 5                         20-Apr-2023 17:58:34
    number of reformations : 5                         20-Apr-2023 17:58:34
    number of iterations   : 5                         20-Apr-2023 17:58:35
    number of reformations : 5                         20-Apr-2023 17:58:35
------- converged at time : 0.687465                   20-Apr-2023 17:58:35
    number of iterations   : 5                         20-Apr-2023 17:58:36
    number of reformations : 5                         20-Apr-2023 17:58:36
------- converged at time : 0.708287                   20-Apr-2023 17:58:36
    number of iterations   : 6                         20-Apr-2023 17:58:37
    number of reformations : 6                         20-Apr-2023 17:58:37
------- converged at time : 0.729507                   20-Apr-2023 17:58:37
    number of iterations   : 6                         20-Apr-2023 17:58:39
    number of reformations : 6                         20-Apr-2023 17:58:39
------- converged at time : 0.750728                   20-Apr-2023 17:58:39
    number of iterations   : 6                         20-Apr-2023 17:58:41
    number of reformations : 6                         20-Apr-2023 17:58:41
------- converged at time : 0.771948                   20-Apr-2023 17:58:41
    number of iterations   : 6                         20-Apr-2023 17:58:42
------- converged at time : 0.793169                   20-Apr-2023 17:58:42
    number of iterations   : 5                         20-Apr-2023 17:58:43
    number of reformations : 5                         20-Apr-2023 17:58:43
------- converged at time : 0.814389                   20-Apr-2023 17:58:43
    number of iterations   : 12                        20-Apr-2023 17:58:46
    number of reformations : 12                        20-Apr-2023 17:58:46
------- converged at time : 0.83597                    20-Apr-2023 17:58:46
    number of iterations   : 8                         20-Apr-2023 17:58:55
    number of reformations : 8                         20-Apr-2023 17:58:55
------- converged at time : 0.843637                   20-Apr-2023 17:58:55
    number of iterations   : 7                         20-Apr-2023 17:58:56
    number of reformations : 7                         20-Apr-2023 17:58:56
------- converged at time : 0.85031                    20-Apr-2023 17:58:56
    number of iterations   : 8                         20-Apr-2023 17:58:58
    number of reformations : 8                         20-Apr-2023 17:58:58
------- converged at time : 0.856507                   20-Apr-2023 17:58:58
    number of iterations   : 7                         20-Apr-2023 17:58:59
    number of reformations : 7                         20-Apr-2023 17:58:59
------- converged at time : 0.861907                   20-Apr-2023 17:58:59
    number of iterations   : 7                         20-Apr-2023 17:59:01
    number of reformations : 7                         20-Apr-2023 17:59:01
------- converged at time : 0.866925                   20-Apr-2023 17:59:01
    number of iterations   : 14                        20-Apr-2023 17:59:05
    number of reformations : 14                        20-Apr-2023 17:59:05
------- converged at time : 0.871589                   20-Apr-2023 17:59:05
    number of iterations   : 8                         20-Apr-2023 17:59:07
    number of reformations : 8                         20-Apr-2023 17:59:07
------- converged at time : 0.874729                   20-Apr-2023 17:59:07
    number of iterations   : 7                         20-Apr-2023 17:59:08
    number of reformations : 7                         20-Apr-2023 17:59:08
------- converged at time : 0.877481                   20-Apr-2023 17:59:08
    number of iterations   : 6                         20-Apr-2023 17:59:09
    number of reformations : 6                         20-Apr-2023 17:59:09
------- converged at time : 0.880048                   20-Apr-2023 17:59:09
    number of iterations   : 7                         20-Apr-2023 17:59:11
    number of reformations : 7                         20-Apr-2023 17:59:11
------- converged at time : 0.882615                   20-Apr-2023 17:59:11
    number of iterations   : 7                         20-Apr-2023 17:59:13
    number of reformations : 7                         20-Apr-2023 17:59:13
------- converged at time : 0.88501                    20-Apr-2023 17:59:13
    number of iterations   : 7                         20-Apr-2023 17:59:14
    number of reformations : 7                         20-Apr-2023 17:59:14
------- converged at time : 0.887246                   20-Apr-2023 17:59:14
    number of iterations   : 5                         20-Apr-2023 17:59:16
    number of reformations : 5                         20-Apr-2023 17:59:16
------- converged at time : 0.889335                   20-Apr-2023 17:59:16
    number of iterations   : 7                         20-Apr-2023 17:59:17
    number of reformations : 7                         20-Apr-2023 17:59:17
------- converged at time : 0.89361                    20-Apr-2023 17:59:17
    number of iterations   : 7                         20-Apr-2023 17:59:18
    number of reformations : 7                         20-Apr-2023 17:59:18
------- converged at time : 0.897587                   20-Apr-2023 17:59:18
    number of iterations   : 7                         20-Apr-2023 17:59:20
    number of reformations : 7                         20-Apr-2023 17:59:20
------- converged at time : 0.901288                   20-Apr-2023 17:59:20
    number of iterations   : 7                         20-Apr-2023 17:59:21
    number of reformations : 7                         20-Apr-2023 17:59:21
------- converged at time : 0.904732                   20-Apr-2023 17:59:21
    number of iterations   : 6                         20-Apr-2023 17:59:23
    number of reformations : 6                         20-Apr-2023 17:59:23
------- converged at time : 0.907939                   20-Apr-2023 17:59:23
    number of iterations   : 6                         20-Apr-2023 17:59:24
------- converged at time : 0.911147                   20-Apr-2023 17:59:24
    number of iterations   : 7                         20-Apr-2023 17:59:25
    number of reformations : 7                         20-Apr-2023 17:59:25
------- converged at time : 0.914354                   20-Apr-2023 17:59:25
    number of iterations   : 6                         20-Apr-2023 17:59:27
    number of reformations : 6                         20-Apr-2023 17:59:27
------- converged at time : 0.917342                   20-Apr-2023 17:59:27
    number of iterations   : 6                         20-Apr-2023 17:59:28
    number of reformations : 6                         20-Apr-2023 17:59:28
------- converged at time : 0.920331                   20-Apr-2023 17:59:28
    number of iterations   : 7                         20-Apr-2023 17:59:30
    number of reformations : 7                         20-Apr-2023 17:59:30
------- converged at time : 0.923319                   20-Apr-2023 17:59:30
    number of iterations   : 7                         20-Apr-2023 17:59:31
    number of reformations : 7                         20-Apr-2023 17:59:31
    number of iterations   : 7                         20-Apr-2023 17:59:33
    number of reformations : 7                         20-Apr-2023 17:59:33
------- converged at time : 0.928701                   20-Apr-2023 17:59:33
    number of iterations   : 7                         20-Apr-2023 17:59:35
    number of reformations : 7                         20-Apr-2023 17:59:35
------- converged at time : 0.931123                   20-Apr-2023 17:59:35
    number of iterations   : 7                         20-Apr-2023 17:59:36
    number of reformations : 7                         20-Apr-2023 17:59:36
------- converged at time : 0.933385                   20-Apr-2023 17:59:36
    number of iterations   : 7                         20-Apr-2023 17:59:38
    number of reformations : 7                         20-Apr-2023 17:59:38
------- converged at time : 0.935497                   20-Apr-2023 17:59:38
    number of iterations   : 7                         20-Apr-2023 17:59:40
    number of reformations : 7                         20-Apr-2023 17:59:40
------- converged at time : 0.937472                   20-Apr-2023 17:59:40
    number of iterations   : 7                         20-Apr-2023 17:59:41
    number of reformations : 7                         20-Apr-2023 17:59:41
------- converged at time : 0.939318                   20-Apr-2023 17:59:41
    number of iterations   : 6                         20-Apr-2023 17:59:43
    number of reformations : 6                         20-Apr-2023 17:59:43
------- converged at time : 0.941046                   20-Apr-2023 17:59:43
    number of iterations   : 6                         20-Apr-2023 17:59:44
    number of reformations : 6                         20-Apr-2023 17:59:44
------- converged at time : 0.942774                   20-Apr-2023 17:59:44
    number of iterations   : 7                         20-Apr-2023 17:59:46
    number of reformations : 7                         20-Apr-2023 17:59:46
------- converged at time : 0.944502                   20-Apr-2023 17:59:46
    number of iterations   : 7                         20-Apr-2023 17:59:47
    number of reformations : 7                         20-Apr-2023 17:59:47
------- converged at time : 0.94612                    20-Apr-2023 17:59:47
    number of iterations   : 7                         20-Apr-2023 17:59:48
    number of reformations : 7                         20-Apr-2023 17:59:48
------- converged at time : 0.947637                   20-Apr-2023 17:59:48
    number of iterations   : 6                         20-Apr-2023 17:59:50
    number of reformations : 6                         20-Apr-2023 17:59:50
------- converged at time : 0.94906                    20-Apr-2023 17:59:50
    number of iterations   : 6                         20-Apr-2023 17:59:51
    number of reformations : 6                         20-Apr-2023 17:59:51
------- converged at time : 0.950483                   20-Apr-2023 17:59:51
    number of iterations   : 7                         20-Apr-2023 17:59:53
    number of reformations : 7                         20-Apr-2023 17:59:53
------- converged at time : 0.951906                   20-Apr-2023 17:59:53
    number of iterations   : 6                         20-Apr-2023 17:59:55
    number of reformations : 6                         20-Apr-2023 17:59:55
------- converged at time : 0.953241                   20-Apr-2023 17:59:55
    number of iterations   : 6                         20-Apr-2023 17:59:56
    number of reformations : 6                         20-Apr-2023 17:59:56
------- converged at time : 0.954577                   20-Apr-2023 17:59:56
    number of iterations   : 10                        20-Apr-2023 17:59:58
    number of reformations : 10                        20-Apr-2023 17:59:58
------- converged at time : 0.955913                   20-Apr-2023 17:59:58
    number of iterations   : 13                        20-Apr-2023 18:00:01
    number of reformations : 13                        20-Apr-2023 18:00:01
------- converged at time : 0.957004                   20-Apr-2023 18:00:01
    number of iterations   : 6                         20-Apr-2023 18:00:02
    number of reformations : 6                         20-Apr-2023 18:00:02
------- converged at time : 0.957826                   20-Apr-2023 18:00:02
    number of iterations   : 6                         20-Apr-2023 18:00:04
    number of reformations : 6                         20-Apr-2023 18:00:04
------- converged at time : 0.958647                   20-Apr-2023 18:00:04
    number of iterations   : 5                         20-Apr-2023 18:00:05
    number of reformations : 5                         20-Apr-2023 18:00:05
------- converged at time : 0.959468                   20-Apr-2023 18:00:05
    number of iterations   : 7                         20-Apr-2023 18:00:07
    number of reformations : 7                         20-Apr-2023 18:00:07
------- converged at time : 0.962598                   20-Apr-2023 18:00:07
    number of iterations   : 6                         20-Apr-2023 18:00:08
------- converged at time : 0.965513                   20-Apr-2023 18:00:08
    number of iterations   : 6                         20-Apr-2023 18:00:09
    number of reformations : 6                         20-Apr-2023 18:00:09
------- converged at time : 0.968429                   20-Apr-2023 18:00:09
    number of iterations   : 7                         20-Apr-2023 18:00:10
    number of reformations : 7                         20-Apr-2023 18:00:10
------- converged at time : 0.971344                   20-Apr-2023 18:00:10
    number of iterations   : 5                         20-Apr-2023 18:00:11
    number of reformations : 5                         20-Apr-2023 18:00:11
------- converged at time : 0.974062                   20-Apr-2023 18:00:11
    number of iterations   : 7                         20-Apr-2023 18:00:13
    number of reformations : 7                         20-Apr-2023 18:00:13
------- converged at time : 0.978907                   20-Apr-2023 18:00:13
    number of iterations   : 6                         20-Apr-2023 18:00:14
    number of reformations : 6                         20-Apr-2023 18:00:14
------- converged at time : 0.98341                    20-Apr-2023 18:00:14
    number of iterations   : 6                         20-Apr-2023 18:00:16
    number of reformations : 6                         20-Apr-2023 18:00:16
------- converged at time : 0.987914                   20-Apr-2023 18:00:16
    number of iterations   : 6                         20-Apr-2023 18:00:17
    number of reformations : 6                         20-Apr-2023 18:00:17
------- converged at time : 0.992418                   20-Apr-2023 18:00:17
    number of iterations   : 5                         20-Apr-2023 18:00:18
    number of reformations : 5                         20-Apr-2023 18:00:18
------- converged at time : 0.996922                   20-Apr-2023 18:00:18
    number of iterations   : 5                         20-Apr-2023 18:00:19
    number of reformations : 5                         20-Apr-2023 18:00:19
------- converged at time : 1                          20-Apr-2023 18:00:19
 Elapsed time : 0:02:39                                20-Apr-2023 18:00:19
 N O R M A L   T E R M I N A T I O N
# Done                                                 20-Apr-2023 18:00:19
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Import FEBio results

if runFlag==1 %i.e. a succesful run

Importing nodal displacements from a log file

    dataStruct=importFEBio_logfile(fullfile(savePath,febioLogFileName_disp),0,1);

    %Access data
    N_disp_mat=dataStruct.data; %Displacement
    timeVec=dataStruct.time; %Time

    %Create deformed coordinate set
    V_DEF=N_disp_mat+repmat(V,[1 1 size(N_disp_mat,3)]);

Plotting the simulated results using anim8 to visualize and animate deformations

    DN_magnitude=sqrt(sum(N_disp_mat(:,:,end).^2,2)); %Current displacement magnitude

    % Create basic view and store graphics handle to initiate animation
    hf=cFigure; hold on;
    gtitle([febioFebFileNamePart,': Press play to animate']);
    hp=gpatch(Fb_blob,V_DEF(:,:,end),DN_magnitude,'k',1); %Add graphics object to animate
    hp.FaceColor='interp';
    gpatch(F_tube,V,'w','none',0.5); %Add graphics object to animate

    axisGeom(gca,fontSize);
    colormap(gjet(250)); colorbar;
    caxis([0 max(DN_magnitude)]/3);
    axis(axisLim(V_DEF)); %Set axis limits statically
    camlight headlight;
    drawnow;

    % Set up animation features
    animStruct.Time=timeVec; %The time vector
    for qt=1:1:size(N_disp_mat,3) %Loop over time increments
        DN_magnitude=sqrt(sum(N_disp_mat(:,:,qt).^2,2)); %Current displacement magnitue

        %Set entries in animation structure
        animStruct.Handles{qt}=[hp hp]; %Handles of objects to animate
        animStruct.Props{qt}={'Vertices','CData'}; %Properties of objects to animate
        animStruct.Set{qt}={V_DEF(:,:,qt),DN_magnitude}; %Property values for to set in order to animate
    end
    anim8(hf,animStruct); %Initiate animation feature
    drawnow;
end

GIBBON www.gibboncode.org

Kevin Mattheus Moerman, [email protected]

GIBBON footer text

License: https://github.com/gibbonCode/GIBBON/blob/master/LICENSE

GIBBON: The Geometry and Image-based Bioengineering add-On. A toolbox for image segmentation, image-based modeling, meshing, and finite element analysis.

Copyright (C) 2006-2022 Kevin Mattheus Moerman and the GIBBON contributors

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.