How to calculate the plastic strain from the engineering stress strain curve
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Hello every one ,
In fact I'm crating a new material(PBT_GF30 : Reinforced short fiber material ) in Material Designer and to do that I need to put the plastic strain Vs stresses . I used the known formula to do this conversion https://docs.google.com/spreadsheets/d/1ZKJdmswIPB-7Rw3j6I_6ganKS_MfIs5X/edit#gid=392220995
I was surprised to get this 2 curves because I suppose that the first point for the plastic strain=0 must be equal to the yiled stress . The formula used are shown below
Thank you for your response
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