Abhishek Tiwari

4 Questions 54 Answers 0 Followers

Questions related from Abhishek Tiwari

Why the elements adjacent to Cohesive Zone bend?

In a three point bend (TPB) model with Cohesive Element layers tied with two symmetric halves of the TPB geometry, the elements tied with CZ layer are assymetrically deforming [see in the...

12 December 2018 558 0 View

VUMAT large strain rate dependent plasticity ?

I am implementing Johnson Cook type plasticity with rate dependence in VUMAT subroutine. I am also using NLGEOM for large strain calculation. 1. My first question is that does my vumat is taking...

08 August 2018 2,458 1 View

Is there a way to apply specific displacement to elements in explicit VUMAT subroutine ?

In the vumat subroutine the increment is applied to a chunk of elements. For some condition calculated by the stress based criteria, how can I ask selected nodes to expand as I want? Should the...

04 April 2017 1,051 1 View

Mirco-mechanism of carbide cracking?

Dear All, The cleavage initiators such as carbides/inclusion i.e. in general inhomogeneity in matrix phase generate micro-crack when a critical max. principal stress is realized by the...

09 September 2016 9,763 4 View