research

Dear All,

i am new to this forum and would like say hello to everybody!

I am currently working on a hip joint model consistent mainly
of the cartilogenous tissues. Biphasic Materials consitent of
a linear elastic Matrix and trapped fluid, which i modelled in
abaqus using Soil Mechanics (permeability).

At the moment, however, i am unable to obtain convergence. The
whole calculation stops at ca 0.122 sec out of total 1 sec. I
guess its just one parameter set wrong in Contact or an convergence

I am a master student doing research on cohesive zone modeling of polymer coated steel.. I use abaqus 6.9 for my simulation.. I have three questions on cohesive zone modelling..

1. Can we input PET material properties directly in Abaqus 6.9

2. Can we input PVC material properties directly in Abaqus 6.9

3. I am using Standard abaqus cohesive Zone models embedded in abaqus standard pack. Is that right approach ?

Please clarify.. This would be life saving help..

Sincerely,
Manivannan..!!

Hi,

I am trying to do with ABAQUS Cae now what I usually and successfully did with MSC Patran - produce a unit cell for particle reinforced composite. In other words,  I need to generate a "ball in a box" model.

So, I produce a part Cube and a  part Ball. After that I create Sections and Instances (what seems to be unnecessary if comparing with Patran, but apparently needed to link CAE with CADs), and assign Materias (lets say, Glass to Ball, and Polymer to Cube).

 Please see the paper published in the Journal of Sound and Vibration 265 (2003) 887–896

Dear users,

 I am currently undergoing a research on simulating iron powder compaction using ABAQUS. As i am new to this software, i need some guide on it. I had read through the manual but it doesnt help much. Below are my few enquiries:

1) The density required in material parameter is the initial density or the bulk density of the iron powder? If i use relative density, can i input in ABAQUS? 

What is the best way to numerically solve the transport equation like(the least numerical diffusion phenomenon):

df/dt+v df/dx=0

 Thank you

It is known that the if the coloumn is long and slender enough, then under axial compressive loading, the column buckles..

But i am wonder, why buckling happens at all?

Can anyone put a light on this.

Rajnish

We all know Euler buckling of a beam under axial thrust, but can buckling occur in an elastic structure in which all elements are subject to tensile dead loading?

We provide a positive answer to this question, see http://www.youtube.com/user/RoyalSociety#p/u/0/EKngs1vvcJU

Dear All,

I am writing to introduce to you a general-purpose composite beam solver, GEBT, which can capture all the geometrical nonlinearity obtainable by the six fundamental deformation modes (extension, torsion, bending in two directions, and shearing in two directions), and the coupling between these fundamental deformantion modes, such as extension-twist coupling commonly existing in initially twisted rotorblades. The features of GEBT are:

Dear all,

      I would like to ask you how is it possible to import into abaqus a 2-D or a 3-D Voronoi structure. so far I ve been able to create my grains into Matlab or fortran but I dont know how to import them into abaqus.

All the best,

    Panos

HI There,

I am going to generate a polymer chain and I am looking for a hexagonal self avoiding walk (SAW) code (computer program), most 3D free code (C nad fortran) are for qubic latice. 

Thanks

AZadeh

hi, i am modeling a composite shell in ansys for nonlinear bucklin analysis.

i have to apply a displacement from one end keeping radial and circumferential degree constant. I have used shell 4node 181 for modelling and element elemrnt size 10.

Also i have to applied a torque of 0.0005 degree so as to perform torsional analysis on shell.

I am confused how to apply this axial displacement and radial degree of displacement to shell in ANSYS 11.

PLEASE ANYONE HELP ME HERE!!!!!!!!!!!

hello everyone... i just want to know can any body tell me about the degisn data of impeller of ship like size and shape of blade and the rpm at which impeller is moving..???

               Forthcoming papers of International Journal of Applied Mechanics (IJAM) Vol.3 No.2:

• “Nonequilibrium Thermodynamics Of Dielectric Elastomers”, Xuanhe Zhao (Duke University,  USA), Soo Jin Adrian Koh (IHPC, Singapore), Zhigang Suo, (Harvard University,  USA)

Hi,

Has anyone or can anyone help me model a prestressed concrete column on Ansys?

I have to model several different prestressed concrete columns to compare to an actual experimental result. I am just getting my feet wet with ansys and any help will be greatly appreciated.

Thanks!!!