User login

You are here


Subscribe to Comments feed
Updated: 7 hours 9 min ago

share one simple 3d cube working example (abaqus)

7 hours 51 min ago

In reply to If you use equation


i had found this while searching for pbc help and i tried running it but the result which appears is totally different from what they have given .

would u check whether the rve.inp is correct or am i doing it wrongly 

thank you 

can you mention, please

17 hours 52 min ago

In reply to not

can you mention, please

have you applied static signal voltage or sinusoid signal at top layer ?

2: have you applied 0 voltage at bottom layer?

ABAQUS mailing list

Wed, 2015-10-07 14:08

In reply to Impact Force plotting using Abaqus/Explicit

I recommend you become a member of the ABAQUS mailing list

something wrong with the link

Wed, 2015-10-07 08:33

In reply to Stiffness threshold of randomly distributed carbon nanotube networks

Dear Prof.Yuli Chen,

When I click the link, it will go to ""

Actually I need to remove the "For", then the hyperlink would work.


Maybe you could remove the "For".



Helpful Work

Wed, 2015-10-07 08:22

In reply to The second perspective paper is published in JAM

It is enjoyful to read these wonderful articles. Both of the two articles give good reseach directions.

Re: Remarks

Tue, 2015-10-06 23:22

In reply to The Twist-Fit Problem: Finite Torsional and Shear Eigenstrains in Nonlinear Elastic Solids

Dear Mohammed:

What you call “mechanical strain” is sometimes referred to as “elastic strain”. A bar under uniaxial tension elongates. Strain corresponding to this deformation is an elastic strain assuming that after unloading the bar goes back to its original configuration. A solid under external loads deforms. However, not any deformation is a result of mechanical loads. As I said earlier, the easiest example is deformation due to temperature changes. Any measure of strain is defined locally and so is eigenstrain. Consider a stress-free solid. Suppose some eigenstrain distribution occurs, for example, due to bulk growth or temperature changes. Imagine that you partition this body into a large number of small pieces. Pick one such small piece and isolate it from the rest of the body. Obviously, this piece being part of a larger body experiences boundary tractions on its boundary. In other words on its boundary there are forces coming from the rest of the body. Let this small piece relax, i.e. remove the boundary tractions. If there are no eigenstrains present in the body any such small piece will go back to its initial configuration in the stress-free body. In general, this small piece will have a relaxed configuration different from its original shape and this difference is due to eigenstrains.

I believe the term “eigenstrain” was introduced by T. Mura. Analysis of eigenstrains in solids has overwhelmingly been restricted to linear elasticity. Here, I’ve been looking at finite shear eigenstrains (in collaboration with my friend Alain) in the framework of nonlinear elasticity.

Incompressibility does not mean a rigid body without deformation. Incompressibility is simply an internal constraint. An incompressible solid can deform but without volume changes anywhere.


Re: Paper of interest

Tue, 2015-10-06 22:52

In reply to Paper of interest

Dear Tais:

Thanks very much for sending the link to your paper. It looks very interesting and I’ll read it with great interest in the next few days. I am familiar with Prof. Zubov’s work on nonlinear mechanics of defects and have cited his book in the past.


Isogeometric analysis: an

Tue, 2015-10-06 22:49

In reply to Isogeometric Analysis

Isogeometric analysis: an overview and computer implementation aspects


Tue, 2015-10-06 18:02

In reply to The Twist-Fit Problem: Finite Torsional and Shear Eigenstrains in Nonlinear Elastic Solids

Hello Dr Yavari,
What is different between classical mechanical strains generating stresses and those which you have defined?
in my comment you must read "eigenvectors" instead of "eigenvalues" sorry for this misplaced word.
in you paper is the word incompressible the meaning of only a tensile case or is it an undeformable case meaning a rigid body without deformation.

Closing Date

Tue, 2015-10-06 15:34

In reply to Postdoctoral Research Fellowship

Applications will be accepted up to 25 October 2015. Candidates with a suitable background will be contacted for interview via Skype. Please note that due to restrictions imposed on the funding for this fellowship, we are not able to consider applicants who are already employed as full time academic staff (teaching faculty) at their current institution.


Tue, 2015-10-06 15:20

In reply to how can I modeling a random perforation plate?



when i cut a circle from a rectabgle face , is its ID changed(for plate"?

if i set a plate in term of :

plt = myModel.Part(name='Plate',
    dimensionality=THREE_D, type=DEFORMABLE_BODY)

 and then holecut of this part, are the plate edges ID changed?

Paper of interest

Tue, 2015-10-06 12:06

In reply to The Twist-Fit Problem: Finite Torsional and Shear Eigenstrains in Nonlinear Elastic Solids

Dear Dr. Yavari,


I was very interested to read this paper. Will try to cite it in my current work which is somehow related. The following paper might be of interest for you.



The python standard library

Tue, 2015-10-06 08:40

In reply to how can I modeling a random perforation plate?

The python standard library includes the "random" module. There's no need to look for it, download it, or compile it. It is there in every build of python.

Up at the top of your file you have a ton of import statements. Most of them are like "from XYZ import *". All you need to do is put "import random" somewhere up there with the others (conventionally, standard library modules are imported first).

I would highly suggest actually working through a series of python tutorials. I've heard good things about Codeacademy - try

If you are interested in

Tue, 2015-10-06 08:02

In reply to Journal Club Theme of October 2015: Mechanics of Structure Genome

If you are interested in knowing more about Mechanics of Structure Genome, you are welcome to join us for the cdmHUB workshop on Composites Simulation during Nov. 3- Nov. 5. 

Dear Tarkes,

Mon, 2015-10-05 09:53

In reply to This instititute is very

Dear Tarkes,

thank very much you for your interest.  You are more than welcome to visit us, and discover a safe and lovely country, and indeed our beautiful Technion campus located on Mediterranean coastline in the beautiful Bay of Haifa.

Technion-Israel Institute of Technology is a major source of the innovation and brainpower that drives the Israeli economy, and a key to Israel’s reputation as the world’s “Start-Up Nation.” Its three Nobel Prize winners exemplify academic excellence.  


Dear Mswan

Mon, 2015-10-05 09:04

In reply to how can I modeling a random perforation plate?

Dear Mswan

could you please help me to find thats module command pattern and syntax?

About the derivatives done by biswajit

Mon, 2015-10-05 08:27

In reply to Dear Biswajit,   when

I am agreeing with Attila. 'p' it self is a fucntion of sigma11 and biswajit has not taken it to account. I have deirved the derivatives of third invariant of deviatoric stress tensor with respect to direct terms and also by indirect terms of deviatoric stress tensor. but those expressions are not similar to the above expressions..since p is also a fucntion of direct stress terms; derivatives of the above expression should be considered as a derivatives of a mutiplication...


Forgot to import "random"

Mon, 2015-10-05 04:50

In reply to how can I modeling a random perforation plate?

You forgot to import the random module. Just put "import random" somewhere up top and it will fix that error message. Note, it might be better to use "random.uniform(0.0, 100.0)" instead of "100*random.random()".

Great perspective article!

Sun, 2015-10-04 21:54

In reply to The second perspective paper is published in JAM

It is enjoyable to read these short yet informative perspective articles.


Recent comments

More comments


Subscribe to Syndicate