importFEBio_logfile
Below is a demonstration of the features of the importFEBio_logfile function
Contents
clear; close all; clc;
Syntax
dataStruct=importFEBio_logfile(fileNameImport,addZeroInitialOpt,removeIndicesOpt)
Description
This function imports FEBio output log files such as for node outputs (e.g. displacement) and element outputs (e.g. stress). The inputs include the file name to import as well as the following optional inputs:
- addZeroInitialOpt => Set to 0 or 1 to import as is, or to add a zero initial state. Note this functionality is not obsolute, since FEBio can now import an initial state (which may be non-zero e.g. for stretch data).
- removeIndicesOpt => set to 0 or 1 to keep or remove the index column from the data
Examples
% 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 febioLogFileName_stress=[febioFebFileNamePart,'_stress_out.txt']; %Log file name for exporting stress sigma_z
Check for existing output files in the temp folder. Run febio demo 1 if not found.
if ~exist(febioLogFileName_disp,'file') DEMO_febio_0001_cube_uniaxial end
Importing nodal displacements from a log file
Importing the output data into a data structure:
addZeroInitialOpt=0; removeIndicesOpt=1; dataStruct=importFEBio_logfile(fullfile(savePath,febioLogFileName_disp),addZeroInitialOpt,removeIndicesOpt)
dataStruct =
struct with fields:
time: [11×1 double]
data: [216×3×11 double]
The data structure contains the time vector and the data. For k dimensional data, n nodes (or elements), and m time steps the data is nxkxm+1 (or m when the initial state is not requested or not added by FEBio).
%Access data U_disp=dataStruct.data; %Displacement data timeVec=dataStruct.time; %Time vector
GIBBON www.gibboncode.org
Kevin Mattheus Moerman, [email protected]
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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) 2006-2023 Kevin Mattheus Moerman and the GIBBON contributors
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