research

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