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Doctoral (PhD) studentship available in Utah State University for Spring 2011

Submitted by Dhirendra Kubair on

There are several  fully funded graduate student openings starting Spring 2011, in the
Department of Mechanical and Aerospace Engineering at the Utah State
University (http://www.mae.usu.edu).
The openings are in the broad area of Computational Solid Mechanics. In
particular, applicants having demonstrated interest (in terms of
completed projects, authorship in journal articles or coursework) in
Fracture Mechanics are especially invited. Applicants are requested to

Scale of mechanical systems and force-displacement relation

Submitted by Peyman Khosravi on

I have a question which has kept my mind busy recently. Assume that we have a system of two masses (m) as shown in the figure. The force (F) results from the gravity force between two masses (m) apart at distance (d), and is applied on a bar with modulus of elasticity (E), length (L), and cross section (A). Assume two pictures are taken from this system from two different distances. So, although the two pictures show an identical system, one of them looks smaller in size compared of the other one.

Solver for XFEM

Submitted by Arash Zamani on

In the FEM book by KJ Bathe and also in the fem book by G.Dhatt, it is said the direct solvers are generally more convenient than iterative solvers and new versions of them include reordering and efficient use of skyline method. In contrast there are iterative solvers with capability to directly manipulate sparse format of matrices. I am now working on XFEM coding with C++ and don't know what type of solver would be the best for XFEM. the conditioning issues of matrices obtained from XFEM would be a difficulty for the choice of preconditioners.

Introducing a user defined heat flux to ABAQUS

Submitted by proksi83@gmail.com on

Dear all,

 

I must apply a user defined heat flux to ABAQUS for getting thermal profile in defferent nodes and elements. How can I apply this user defined heat flux to AVAQUS and how can I write this user defined heat flux for ABAQUS?

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hyperelastic model

Submitted by naim.kan on

Hello Guys,

 i am working on elastomers,i want to analysis the rubber hose with kevlar reinforcement,i dont know how to model the fiber in rubber model,and which element i should use,is anyone help me out.

 thanks

naim khan

About the half-step residual tolerance in Abaqus

Submitted by NewerLi on

    This days, I am working on the dynamics analysis using the Abaqus. the implicit dynamic integration method in abaqus is HHT-alpha. I found that a very strange parameter about the method is the half-step residual tolerance . I don't know the parameter is whether important or not and how to determine it.

thank you very much :)