March 31, 2020 at 7:46 pm
Wenlong
Ansys Employee

Hi,


The tangent modulus of a hardening model cannot be less than 0, which means you cannot define a softening behavior in a hardening model. (Reference: 


There are other material properties you can use to define the softening behavior of concrete, such as the Microplane damage model:


1. https://ansyshelp.ansys.com/account/secured?returnurl=/Views/Secured/corp/v201/en/ans_tec/tecreinfconcmatprop.html?q=concrete%20damage


2. https://forum.ansys.com/forums/topic/coupled-damage-plasticity-microplane-damage-output/


3. https://forum.ansys.com/forums/topic/entering-non-linearity-in-workbench-for-concrete/


4. https://forum.ansys.com/forums/topic/tutorial-concrete-masonry-in-workbench/


 


You can do a search    concrete site:studentcommunity.ansys.com on google and you will find a lot of information about concrete modeling in Ansys Mechanical.


Regards,


Wenlong


 


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