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MLPG

 

Could any body provide MPLG basic code to test my code for problems in linear elasticity.

 (DSingh)

 

oscillations in LS-Dyna acceleration-time output

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I hope this is the correct forum to post this in ... 

Fatigue

Dear all,

       I would like to ask you, how is it possible to simulate fatigue in Abaqus. I have created my loading. But if I run it as it is it will never reach a critical value, so you could say there is no damage evolution. Is it the only way is to apply some type of hysteresis loop evolution and say that after some cycles the hysteresis loop changes?

Any advice is more than welcome!

Regards,

            Panos

Gouse's picture

Unit cell modeling using Abaqus submodeling

Hi,

I was going though papers related to micromechanical modeling of composites using unit cell approach. Usually in this procedure, a unit cell is isolated from the material and to ensure the compatabilty of the unit cell boundary, periodic boundary conditions are applied.

To ensure the compatabilty of the boundary and to apply loads, can we use submodeling techniques available in ABAQUS.

Thank you

Regards

Ghouse 

Post-doctoral position at University of Cape Town, South Africa

The Centre for Research in Computational and Applied Mechanics (Cerecam) at the University of Cape Town, South Africa, invites applications for a post-doctoral fellowship in nonlinear computational mechanics. Further information about the position may be obtained from Professor
Daya Reddy (daya.reddy@uct.ac.za).

meshfree shape function

This is regarding the MLS shape functions, used in meshfree methods.  How the number of sampling point affects the plot of shape functions for the nodes? Is the "peak values" fall down as the sampling points are increased?

Dominant frequency of an earthquake wave

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Hi all,

How to find the dominant frequency of a seismic wave?

ADINA Electromagnetics

We have recently added the ADINA Electromagnetics module (ADINA-EM) to our wide range of multiphysics offerings. Using this module, the general Maxwell's equations can be effectively solved and the resulting electric and magnetic fields can be coupled to the fluid flow. For details please see:

http://www.adina.com/adina-electromagnetics.shtml

For an overview of other multiphysics capabilities of ADINA please refer to: 

On proposals

Every year I try to get funding for things that I'm personally interested in but which may not have any immediate economic benefits.  A couple of years ago, after reading Penrose's "Road to Reality", I thought about applying Clifford algebra ideas to fracture mechanics and wrote up a proposal to that effect.  The proposal wasn't funded, but I think the idea is worth exploring.

The summary of the proposal was

From the literature

Naturally negative bulk modulus material.

 

Negative Linear Compressibility and Massive Anisotropic Thermal Expansion in Methanol Monohydrate

Fatigue

Hi,

 I d like to ask you how could fatigue loading be modelled in cae. I know that you can set up the load as a sin function with min and max values. But where do you set-up the total nr of cycles? Is at the step part and where exactly?

And another question could anyone provide me with details of the input file for the hysteresis loop, where the stess nd strain resistance of the material drops after certain cycles..

 

Regards,

   Panos

mporfiri's picture

Openings for PhD students and PostDoctoral fellows at NYU-Poly

The Dynamical Systems Laboratory in the Department of Mechanical and Aerospace Engineering at the Polytechnic Institute of New York University is seeking to recruit multiple Post-Doctoral fellows and Ph.D. students in fluid-structure interactions, mechanics of composite materials, and vibrations.

pipes

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Hi all,

 i need help in doing simulation for a  water pipe  with an internal pressure is applied on it and there is a semieleptical crack in the wall of pipe.

how can i get the pressure which causes the failure of pipe?

how can i get th nominal stress in the pipe?

thank you

Suzanne

Difference between plastic and Elasto-plastic deformation

Hi all

      What is the difference between plastic deformation and Elasto-plastic deformation? Thank you all.

mesh dependence of continuum damage mechanics approach

Hello Everyone,

I am a beginner in FEA of composites under impact in commercial explicit code Pam Crash.I want to know why the behaviour of composite plies with CDM approach show mesh dependency?Or a more general question for me is that what makes the FE simulation of a material with strain softening behavior mesh dependence(If this conclusion is right)? Does it make any difference with regard to mesh dependency if one uses implicit codes??

Thanks

Setareh 

 

Import geometry into Abaqus

Hi all,

             I would like to ask how is it possible to import  a sketch or a part into Abaqus without using any other software needed, like CATIA, PARASOLID etc... Currently I am using Matlab to create my geometry. What I obtain is my exact geometry in terms of points given by x,y and z coordinates in txt format or inp format. But still struggle to import my geometry into Abaqus. Any help, more than welcome...

Best regards,

              Panos

Mubeen's picture

CISM Course: Plasticity and Beyond

Dear all,

please find information about the 5 day - course on Plasticity and Microstructures at CISM Udine, Italy.

The link is:

http://www.cism.it/courses/C1104/

Flyer is attached.

Best regards,

Mubeen

----------------------------------------------------------------------------------

Original post from CISM website:

Plasticity and Beyond: Microstructures, Crystal-Plasticity and Phase Transitions

viscoelasticity

viscoelasticity  ----ABAQUS

finite eleminte model

Dear Guys,

I AM NEW PHD STUDENT and my project is to build a finite eleminte model based on MRI data of an index finger and the tissue inside it.  I'm wondering how to start it and what is the best way to go about it.  I've not covered all the aspects of my project or the first step to start it.  I'm looking for some advice regarding this.

Thanks for your reply

viscoelasticity property material

hi

please wgo can tell me what does mean the folowings:

   -", the modulus ratio in the first term in the Prony series expansion of the shear relaxation modulus."

   -", the modulus ratio in the first term in the Prony series expansion of the bulk relaxation modulus."

and how to calculate them in abaqus

thanks 

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