Akbar Mostaani

6 Questions 9 Answers 0 Followers

Questions related from Akbar Mostaani

How can I use adaptive meshing with element deletion and self contact?

Hi All I am trying to simulate scratch test with ABAQUS. I need to consider ductile damage and self contact between chip and sheet after failure along with adaptive meshing to cope with severe...

12 December 2014 6,405 4 View

What is proper adaptivity technique and damage model for scratch test simulation?

Hi I am trying to simulate scratching of DP steel by a rigid indenter: 1- Due to excessive distortion i need to use adaptive meshing. I have used ALE method but it seems that due to having general...

11 November 2014 4,499 4 View

How to define contact between newly generated surfaces after failure?

I am trying to establish contact between two newly generated surface after failure in Implicit. For example, i have applied enough tensile force to break the part into two pieces and then...

08 August 2014 4,649 4 View

Is there a method to estimate bond strength parameters required to use ABAQUS cohesive interaction functionality to simulate metal to metal bond?

I am trying to simulate adhesion of metal sheet articles to forming dyes during SMF. It is called galling. I have a problem defining the required parameters to feed into ABAQUS, i.e Knn, Kss, Ktt....

05 May 2014 529 4 View

Why is distribution of PEEQ in flanneting of a spherical asperity like this? It seems that right on the surface there is a gradient of PEEQ!

I am trying to model the flattening of a spherical asperity tip by a rigid flat surface. I know that plastic deformation initiates under the surface, according to Hertz theory. Then it propagates...

08 August 2013 6,630 0 View

Why maximum PEEQ is not at contact surface in an asperity flattening process?

I am a new Abaqus user. I tried to make a simple model of asperity flattening by imposing a downward displacement into an analytically rigid die compressing an Aluminum 3 asperity. I used Abaqus...

06 June 2013 5,565 9 View