How can I split/ add different yield strength/ Mechanical properties to the same component in FEA?

Enrique_Cepeda

I know I can assign a material to a component, but the different shapes affect the properties along the component in a way that the yield strength is not homogeneous. Is there a way to simulate this non-uniform distribution of the mechanical properties. On similar topics I've seen that it is possible to change it with "direct assignment" method. Can someone explain this to me, or other ways this can be simulated?

Thank you!

Michael Herve

Hello @Enrique_Cepeda ,

implicit solvers were first developed with no solver entity for part. So the entity that is used to specify which elements belong to the same parts is the property.

In HyperMesh we offered the possibility, through component, to have a separate entity to represent part. This entity is not export in any manner in implicit profiles, apart of HyperMesh comment.

So in HyperMesh you have two possibilites for implicit profiles:

• either you assign the property on your component. This is what we call indirect assignment
• or you assign the property directly on elements (right click on the property → assign and select elements instead of a component). This is the direct assignment, and this is what you are looking for

Direct assignment is available only for implicit solvers, as explicit solvers have dedicated solver keywords for part definition (/PART in Radioss, *PART in KLS Dyna, …)

Hope that helps,

Michael