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Abaqus modelling to find out the time of failure when increasing the temperature???

Submitted by baleshan on

Hi all,

 

If you can pls advise me to modelthis experiment.

 

First I have applied a constantload for the steel member.

Then I have increased thetemperature of one of the member surface with time

until the member got failed.

This resulted in non-uniformtemperature variation across the section.

I have measured the temperaturesof the different surfaces of the member and

I would like to use thesetemperature values in my structural modelling.

Now I would like to model themember so that I can find out the time

Extended finite element analysis tutorial in ABAQUS

Submitted by tvpc22 on

Hei,

 I am a new learner of XFEM. I want to start some exmaples in ABAQUS. The tutorial in ABAQUS is rather crude. If any body has experience, May I have small notes on how to solve problems with XFEM in ABAQUS?

Thank you for your help.

 Venkat

 

 

Multi time scale simulations for wear prediction in micro-gears

Submitted by vh on

Reliability of micro-gears is known to be adversely affected by wear. In this work we report a strategy to predict local wear with the aim of predicting their effective life span. For the prediction of local wear we start from the relevant model experiments, choice of a suitable wear model and identification of the wear coefficient from these experiments. This wear model is then implemented in an efficient finite element based scheme to predict local wear.

Expert programmer needed for atomistic project in Minnesota

Submitted by tadmor on

Expert programmer needed for an exciting project at the University of Minnesota involving the establishment of an online infrastructure for the evaluation of the transferability of interatomic potentials used in atomistic and multiscale simulations. The project called KIM -- the Knowledgebase of Interatomic Models -- is funded through the NSF's Cyber-Enabled Discovery and Innovation (CDI) program. For more information see the attached PDF file. The position is available immediately.

PhD thesis Evaluation

Submitted by kirthanlj on

Sir,

one of my students is working on PhD topic " Study of cold hole expansion and evaluation of fatigue properties on critical aerospace components". His work has to be reviewed by professor of non indian origin in foreign universities. I request you to kindly help this student. If you are interested, let me know, so that I will ask my university to contact you in this regard.

Thanks

Kirthan.L.J

A computational mechanics position in microelectronics industry

Submitted by charliezhai on

We have an opening for computational mechanics experts with Ph.D. in Mechanical Engineering or Material science.

 

The position will work on thermal mechanical modeling, analysis, material characterization and reliability test to improve product reliability and manufacturability.

 

why thermal stress is self equilibrating

Submitted by ranababu on
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Thermal stress does not develop when the free displacement is not constrained. How is this related to the term self equilibrating?

 

Say, I have a plate with the upper and lower surfaces at two different temperatures. The plate is not having any other constraint to prevent themal expansion. Why thermal stresses will not be generated in this case ( because of temperature gradient)?

 

Regards

Journal Club Theme of October 2009: Peridynamics applied to the structure and evolution of discontinuities

Submitted by Stewart.A.Silling on
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Discontinuities have a fundamental role in the mechanics of solids. The most famous type of discontinuity is a crack, but others are important too, such as dislocations and phase boundaries. Many types of deformation that appear to be continuous at the macroscale, such as plastic flow in metals, really involve the evolution of discontinuities at some smaller scale.