Bhanu Savarni Kosuri

7 Questions 3 Answers 0 Followers

Questions related from Bhanu Savarni Kosuri

How to display StateVariables(Damage values) of a ABAQUS VUMAT code along the eigen directions?

I have stored damage values for each eigen direction in statevariables for VUMAT code in ABAQUS Framework.My Question is Can the damage values be displayed along the eigen directions?. I have...

02 February 2016 3,812 0 View

How can I use subroutine for only one of the part (out of two parts) in ABAQUS model? Is my VUMAT Subroutine right?

Hi, My ABAQUS model has two parts:1.Projectile,2.Target. I have written subroutine for target.I want to use inbuilt johnson cook damage model for projectile.How to use subroutine only for the...

10 October 2015 1,653 2 View

VUMAT implementation error in ABAQUS:Excessive Distortion of Elements?

Hi, I am trying to implement probabilistic damage model of the dynamic fragmentation of brittle materials,Hild,Advanaces in applied mechanics,2010 I have got excessive distortion error.Please...

10 October 2015 8,569 4 View

How to rectify ABAQUS ERROR:zero or negative dilation modulus?

I Have got the following errors in ABAQUS after running with the following subroutine.Please help me by sorting out the errors and warnings. Please suggest if any improvements required in the...

10 October 2015 5,793 1 View

I have a doubt in VUMAT coding?

Hi, I have a doubt in VUMAT if I calculate compliance tensor(as show in attached file) at each step and inverse it to obtain the constitutive tensor(Jacobian)and then multiply with strainInc to...

10 October 2015 3,207 1 View

How to update stress in VUMAT if my Jacobian in UMAT includes anisotropic damage?

I wrote a damage model in UMAT subroutine based on "Probabilistic damage model for the dynamic fragmentation in brittle materials",Hild,Advances in applied mechanics,pp.1-72,2010;Multiscale...

09 September 2015 1,132 4 View

How can I solve the following nonlinear differential equation?

The kinetics of damage is given in differential form. The Differential equation is attached in jpg format(equation 81 of reference paper).In the equation take n=3,i(=1,2,3) do not denote index...

08 August 2015 1,308 11 View