Abaqus blast strain rate

[Batzo]

Hi
Abaqus documentation is suddenly not available,
I know there are three ways for hardening concrete subjected to blast (fix me if im wrong):


1. Power law
2. Johnson cook
3. Yield ratio

Which one to choose? What are their equations?

 

[FEA way]

Abaqus documentation is available on Dassault Systemes website.

What you are talking about is rate-dependent yield. The choice of its definition method depends mainly on the available material data.