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In SPH method, does it need fracture criterion?

Submitted by guojunhang on

In abaqus ,  there is an example for SPH. It can be obtained by:

abaqus fetch job=ver_prc_projectileimpact.inp

There are two fracute criterion in this file.

But even both of them are removed, the simulation results are similar.

Why?

In SPH method, does it need fracture criterion?

 

Is anyone familiar with the use of yield strength in creep zone?

Submitted by naveen_bhel on

I was going through some literature on AUSC steam turbine (operating temperature 700 deg C). In many of the papers i have seen that 400 MPa yield strength at operating temperature was used as material selection criteria for turbine rotor. At the same time some people are using Alloy 617 for same application, for which creep rupture is quite high (around 137MPa at 700 deg C) at operating temperature but yield strength is around 200 MPa.

Two Ph.D. positions available at University of Houston

Submitted by Roberto Ballarini on

Two Ph.D. positions in the general area of mechanics are currently available in the Department of Civil and Environmental Engineering at University of Houston.

Applicants should possess an MS degree in civil, mechanical, or other related engineering field at the time of enrollment at University of Houston. A strong background in continuum mechanics is required.

Call for Abstracts; EMI 2015 Stanford

Submitted by swcranford on

Dear colleagues,

I invite you to submit an abstract to the following minisymposium: Modeling and Characterization of Nanocomposites and Molecular Heterostructures as part of the Engineering Mechanics Institute annual conference at Stanford University.

See: http://www.emi2015.info

Best Regards,

Steven Cranford

Northeastern University

 

Abaqus Standard/CFD

Submitted by Tiago Morgado on

Hi, I'm trying to solve a problem with heat transfer and fluid. When I co-execute heat transfer model and CFD model, the following error is encountered "An unrecoverable error has been encountered with the co-simulation engine".

Can anyone help me solving this error?

Gratefull for your attention.

Survey of Computing Platforms for Engineering Simulation

Submitted by Lee Margetts on

How many organisations are using Cloud Computing? Is the use of High Performance Technical Computing in engineering simulation set to grow in the next 5 years? Will Tablet PCs be powerful enough to run my application? What do my peers think?

These are typical questions asked by the engineering simulation community. Wouldn't it be great if we could take a snapshot of the type of computing platform we're using today and also predict where we will be in the next 5 years? 

Cracks found at reactor at Hunterston B nuclear power station

Submitted by Lee Margetts on

Perhaps some of those on this site have seen the news article on the BBC website yesterday about cracks appearing in the reactor at the Hunterston B nuclear power station. As the article states, cracking in the graphite bricks is predicted and the regulators are happy that the reactor is safe to operate.