Vahid Ebrahimzade Isfahani

8 Questions 18 Answers 0 Followers

Questions related from Vahid Ebrahimzade Isfahani

Infuelnce of porosity on coefficient of thermal expansion (CTE) and creep strain rate for ceramics such as YSZ?

I am looking for the experimental data in literature who could show the influence of porosity on coefficient of thermal expansion (CTE) and creep strain rate for ceramics such as YSZ. So far, no...

11 November 2017 2,733 6 View

Writing in a file using Abaqus subroutine?

Hello all I am having a very weird problem. I have already written to files whithin Abaqus subroutines, using the commands below: ...

10 October 2017 7,142 3 View

How to use birth-death technique for element replacement?

Hi all I am trying to implement birth-death technique in order to implement oxidation of a material. It means I want the material assigned to the element changed after some amount of time. This...

09 September 2017 8,989 4 View

How to get started with XFEM/phase field method for fracture analysis under thermomechanical cycling?

Hi all I want to analyze crack initiation and propagation for a TBC system under thermal cycling and after success under thermomechanical loading, with Abaqus. I already know Abaqus in an...

01 January 2017 7,278 2 View

What is the difference between the principle of maximum dissipation and the principle of minimum of dissipation potential?

I want to know which one is computationally more expensive than the other and why? Thank you. ---- If you are interested in knowing more about them, please read the following if it is possible...

12 December 2013 6,457 1 View

Can anyone please explain why the Helmholtz free energy is called free?

My question is about Helmholtz Free Energy which is defined as: F = U - TS (1) where U is the internal energy, T is the temperature and S is the entropy. I have searched some literature to find...

11 November 2013 792 20 View

Using secondary creep data from a more complex creep model?

I have a literature about thermomechanical modelling of TBC systems, which use a creep model for the thermal barrier coating consisting of primary and secondary creep. The constants vary with...

01 January 1970 1,831 3 View

How can I speed up a simulation with Abaqus?

Hi Thank you very much in advance for your help and time! I have two questions: I wanted to know how to increase the memory for a task. My RAM is 64 gb. But even I set the priority to high in task...

01 January 1970 6,386 11 View