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Ansys Learning Forum › Forums › Discuss Simulation › LS Dyna › On the calculation of the strain tensor in ls-prepost › Reply To: On the calculation of the strain tensor in ls-prepost

October 29, 2024 at 4:37 pm
Alex Rycman
Ansys Employee

Hello, 

Which strain is being plotted? 

After running a simple shear model and plotting the strains I got the following results. If the Cauchy strain is plotted (computed by LS-DYNA), the graph should look like this:


If the engineering (infinitesimal) strain is plotted (computed by LS-PrePost) it will be of course linear: 

 

Please check exactly which strain is being plotted. 

 

Thank you,

Alex 

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