research

Fatigue

Submitted by Panos Efthymiadis on Sun, 02/13/2011 - 13:07

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

Openings for PhD students and PostDoctoral fellows at NYU-Poly

Submitted by mporfiri on Fri, 02/11/2011 - 17:14

research

composite materials

Fluid-structure Interactions

Dynamics and Vibrations

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

Submitted by suzy883 on Fri, 02/11/2011 - 14:15

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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

Submitted by priyadd84 on Fri, 02/11/2011 - 05:42

research

solid mechanics

Hi all

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

Structure, energy, and structural transformations of graphene grain boundaries from atomistic simulations

Submitted by barbarossapao on Thu, 02/10/2011 - 05:46

research

graphene

defect

Hi Guys

This is our latest paper in press on "Carbon"

Abstract:

mesh dependence of continuum damage mechanics approach

Submitted by setareh on Wed, 02/09/2011 - 16:05

research

Composites

mesh dependence

continuum damage mechanics

strain softening behaviour

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

Submitted by Panos Efthymiadis on Wed, 02/09/2011 - 11:38

research

ABAQUS

part geometry

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