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Frictional rolling contact model CONTACT version 13.1 released

Submitted by Edwin Vollebregt on

Dear all,

Herewith I want to announce the release of the frictional rolling contact model CONTACT version 13.1.

The main changes with respect to earlier versions of the program are as follows:

Predictive abilities for stresses in individual inclusions and the matrix by the Mori-Tanaka and PGMT formulation

Submitted by Atul Jain on

Both effective properties of composite and the stresses in the individual inclusions and in the matrix are necessary for modelling damage in short fibre composites. Mean field theorems are usually used to calculate the effective properties of composite materials, most common among them is the Mori–Tanaka formulation. Owing to occasional mathematical and physical admissibility problems with the Mori–Tanaka formulation, a pseudo-grain discretized Mori–Tanaka formulation (PGMT) was proposed in literature.

Postdoctoral position at Texas A&M University in Qatar on modeling polycrystalline materials

Submitted by gayoub on

One year postdoctoral position at Texas A&M University in Qatar is effective immediately; the work will be in the field of solid mechanics experimental investigation and modeling of Mg alloys.



One year postdoctoral position in solid mechanics effective immediately at Texas A&M University in Qatar at light material lab



This position is not located in the United States. Must be willing to relocate to Doha, Qatar.

What is incompressible solid?

Submitted by Breslavsky on

Dear Colleagues,

 

In the literature two definitions of incompressible solid can be found. The first one is: Poisson's ratio =0.5, and the second is: the  third invariant of the Cauchy-Green deformation tensor J=1. I wish to understand the connections between these two definitions. To me, here is something strange.  Poisson's ratio relates strains to stresses,and J as the combination of strain tensor components, doesn't depend on Poisson's ratio. I'll be grateful to you, if you explain me how these two definitions are connected.

hello , in NGUYEN V 's 'An Object-Oriented approach to the Extended Finite Element Method with Applications to Fracture Mechanic

Submitted by honggang on

hello , in paper :An object-Oriented approach to the xfem with Appications to fracture mechanics, in page172, the matlab code :mshmlab.m.

when i run the code mshmlab.m , this problem occured:

 ???Maxmium recursion limit of 500 reached, when i set(0,'recursionlimit',N).N=5000. the matlab crashed,

how to address this issue?