Note that MCalibration can plot strain energy density (and it should work for most material models ?). Here's a figure for a hyperelastic + Mullins model.

232Note that the strain energy function for a Mullins model is a bit different since the damage is not "visible" until unloading.

/Jorgen

]]>However, obtaining the same for cyclic loading appears to be tricky. Do I have to calculate differently for the loading and unloading curves? I tried this but I get unusual curves.

Any idea on the correct method of obtaining the strain energy density data for cyclic loading? I will appreciate it. I need this data to model the Mullins effect.

Thanks in advance,

Melly

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