Hi all,
I am using ABAQUS explicit to model a sandwich core material that consists of a lot of fibres aligned at small angles to the metallic faceplates. I used the continuum element to model this core. Because this material is plastic pressure dependent, I cannot use VonMises and J2 flow law to model the material plasticity. So I used both Drucker prager and Crushable foam to model the plasticity behavior. However, these is a drawback in both models that is only linear isotropic elasticity behavior is permitted for the material; this does not correspond to the present transversely isotropic material behavior.
Any suggestion is appreciated.
Daowu
I am using ABAQUS explicit to model a sandwich core material that consists of a lot of fibres aligned at small angles to the metallic faceplates. I used the continuum element to model this core. Because this material is plastic pressure dependent, I cannot use VonMises and J2 flow law to model the material plasticity. So I used both Drucker prager and Crushable foam to model the plasticity behavior. However, these is a drawback in both models that is only linear isotropic elasticity behavior is permitted for the material; this does not correspond to the present transversely isotropic material behavior.
Any suggestion is appreciated.
Daowu