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Obtain the strain from the model analysis solution

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Kun Zeng
Kun Zeng on 10 Jul 2020
Commented: Kun Zeng on 13 Jul 2020
Hi all,
I did a model analysis by using PDE toolbox and obtained the solution (natural frequency; mode shape; mesh). However, I would like to get the strain from the result of the model analysis. I tried directly using the command "StrainRF=evaluateStrain(RF)", but it shows "Check for missing argument or incorrect argument data type in call to function 'evaluateStrain'." If there is any other method to get the strain from the model analysis result? I appreciate any assistance.

Answers (1)

Ravi Kumar
Ravi Kumar on 10 Jul 2020
Strain is in response to a applied loading. Modal analysis is a eigenvalue problem. So you won't be able to calculate strain from modal analysis. You might want to apply loading and solve a static/dynamic problem.
  1 Comment
Kun Zeng
Kun Zeng on 13 Jul 2020
Hi Ravi,
Thank you for your reply. As I know for the modal analysis, the mode shape(s) is the deflection solution of the eigenvalue problem. Can I get the strain mode shape from the mode shape(s) results already obtained from the model analysis?
Thank you so much.

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