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Describing necking/strain softnening in solids4FOAM

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Old   April 2, 2021, 13:48
Default Describing necking/strain softnening in solids4FOAM
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Hello to all,


I would like to know if it is possible to describe strain softening in solids4Foam.







The material I am using as some strain softening after yield (not has pronounced as in the image above) followed by strain hardening.
I would like to input this behavior in solids4Foam. Can I just place the true stress- true strain curve in a file like in the neckingBar tutorial?



What is the best approach to model this behavior?



If I model strain hardening, does the first value of hardening need to be higher than the yield stress?



Best Regards!
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