How to define transversely isotropic material in Simulation Mechanical?

[Anonymous]

For my undergraduate research work, I need transversely isotropic materials for some analysis. But I couldn't really find out from where to define this property in Simulation Mechanical 2017. I've searched a lot in the internet, but that didn't really help me a lot.

I'd be very glad if anyone had provided me with a walk through how to define transversely isotropic material in Simulation Mechanical.

[John_Holtz]

Hi @Anonymous

Are you performing a stress analysis? I believe transversely isotropic (T.I.) is a special case of anisotropic. So you can google how to calculate the T.I. properties for an anisotropic material, and use the anisotropic material model in Simulation Mechanical.

The material model is chosen from the Element Definition for the part. 

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[Anonymous]

I'd be glad if anyone had walked me through it by a step-by-step example.

[AstroJohnPE]

Hi @Anonymous

I googled "anisotropic stiffness matrix example". This document appears to give the information that you need to calculate the anisotropic material constants for a material that is transversely isotropic (as well as other formulations).

6.3 Anisotropic Elasticity

There are many materials which, although well modelled using the linear elastic model,

are not nearly isotropic. Examples are wood, composite materials and many biological

materials. The mechanical properties of these materials differ in different directions

[Keith.Orgeron]

@AstroJohnPE, A very complete and concise reference for this rather common material type.  Thanks!