Mohamad Khorashad

11 Questions 49 Answers 0 Followers

Questions related from Mohamad Khorashad

Requirements of developing finite element softwares?

There are many Finite Element softwares that are some commercial and some not. Many of them are open-source and some are closed-source. Abaqus, Ansys, LS-DYNA and ADINA are familiar to all...

10 October 2015 2,266 8 View

How do you link Abaqus 6.14 to MPI-cluster?

I want to analyse an explicit model in Abaqus software, but because of consuming time, I want to use Parallelization. I read the help but it runs just with two nodes. what settings, I should do to...

09 September 2014 7,375 2 View

Can anyone help me with a UNDEX problem in Abaqus?

In the UNDEX simulation on a simple steel plate, the stress in the plate does not converged but the pressure of acoustic medium reach a peak and converged. I put the pictures below. Does any one...

07 July 2014 6,314 1 View

What is the characteristic element length for a solid element?

I want to write a VUMAT subroutine for progressive impact damage. In a failure criterion, there is a characteristic length. How can I calculate this? A friend told me to write the element length,...

05 May 2014 6,785 7 View

What does my error in VUMAT subroutine mean?

I want to implement a VUMAT subroutine in Abaqus, but when I do it, the following error displays. Is there anyone who knows what this means? I use Abaqus 6.12-1 and visual studio 2008. I am sure...

05 May 2014 2,101 30 View

What is the difference between UDMGINI, VUMAT & VUSDFLD subroutines in Abaqus?

I want to model progressive impact damage in laminated composite, I see in papers, they usually use VUMAT subroutine, but there are other subroutines to model damage. Is there anyone who knows...

05 May 2014 2,835 2 View

How can I simulate progressive impact damage in composite material with Abaqus?

I want to model low velocity impact damage in composite plates. I don't know anything about it. Could anyone help me? Tutorial, book or etc.

03 March 2014 655 15 View

How can I model damages for composite materials in Abaqus?

I don't know anything about damage theory, but I must model damages in composite materials. Do you have any tutorial, book or anything to help me?

03 March 2014 1,887 7 View

Why is the minimum value of residual tensile strength in region II fewer than the constant value of region III?

In an impact analysis, there is a curve that shows residual tensile strength of composites that has incurred damage due to impact. You can see this curve in attachment.

02 February 2014 2,542 1 View

What's the different between quasi-static and dynamic analyse?

I wanna to analyse a low velocity impact procedure on composite pressure vessel, but I don't know what analyse I should be do. Can anyone help me?

02 February 2014 6,724 23 View

What is the difference between "Analytical rigid" and "Discrete rigid" in Abaqus software?

I want to know where they are used exactly.

02 February 2014 5,875 11 View