i working on impact, and I should model the penetration in armour, last time i modeled it by LS -DYNA and now I working with abaqus, but it does not have material model for ceramic. accordingly, i should write the VUMAT, but i do not know how I start.
I need some reference for starting to write subroutine. please help me
You can take a look at this
You can take a look at this file. It's very helpful.
http://imechanica.org/files/Writing%20a%20UMAT.pdf
In reply to You can take a look at this by Lihua Jin
thank you
thank you
book
Introduction to Computational Plasticity and the associated webpage are great resource to get up and running with Abaqus subroutines.