research

I want to simulate the crack growth under cycle load through ANSYS

I have thought two way to simulate it, first way is cohesive model(debonding)

second way is remesh(rezone at certain load step), this way is important for me, since this method mapsolves the new mesh into the old mesh, so the plastic strain information near crack tip element could transfer to new mesh.

I need a example file(code-command file of ansys) or comment

dear my friends!:

 i doult whether the value of K caculated by ANSYS is proper for a cracked model with Ramberg-Osgood constitutive relationship?   

Dear All,

i am new to this forum and would like say hello to everybody!

I am currently working on a hip joint model consistent mainly
of the cartilogenous tissues. Biphasic Materials consitent of
a linear elastic Matrix and trapped fluid, which i modelled in
abaqus using Soil Mechanics (permeability).

At the moment, however, i am unable to obtain convergence. The
whole calculation stops at ca 0.122 sec out of total 1 sec. I
guess its just one parameter set wrong in Contact or an convergence

I am a master student doing research on cohesive zone modeling of polymer coated steel.. I use abaqus 6.9 for my simulation.. I have three questions on cohesive zone modelling..

1. Can we input PET material properties directly in Abaqus 6.9

2. Can we input PVC material properties directly in Abaqus 6.9

3. I am using Standard abaqus cohesive Zone models embedded in abaqus standard pack. Is that right approach ?

Please clarify.. This would be life saving help..

Sincerely,

Manivannan..!!

Hi,

I am trying to do with ABAQUS Cae now what I usually and successfully did with MSC Patran - produce a unit cell for particle reinforced composite. In other words,  I need to generate a "ball in a box" model.

So, I produce a part Cube and a  part Ball. After that I create Sections and Instances (what seems to be unnecessary if comparing with Patran, but apparently needed to link CAE with CADs), and assign Materias (lets say, Glass to Ball, and Polymer to Cube).

 Please see the paper published in the Journal of Sound and Vibration 265 (2003) 887–896

Dear users,

 I am currently undergoing a research on simulating iron powder compaction using ABAQUS. As i am new to this software, i need some guide on it. I had read through the manual but it doesnt help much. Below are my few enquiries:

1) The density required in material parameter is the initial density or the bulk density of the iron powder? If i use relative density, can i input in ABAQUS?