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Earthquake in West China

Submitted by Joseph X. Zhou on

After I put down the phone, my heart never felt so heavy. I just called my parents in my hometown, Chengdu,  a city with 12 million people, which is just 90 kilometers away from the center of the strong earthquake at a magnitude of 7.9.  It has killed more than 10,000 people so far. The death toll is still rising hour by hour.

Fig. 1 Earthquake map by the United States Geological Survey

Modeling DCB Specimen using Ansys to determine Energy Release Rate

Submitted by Renjith C S on

 

Hi

         Iam working on ansys modelling of DCB specimen to determine the energy release rate. Ihave modeled a CT specimen and determined its SIF. Is it right way to model the DCB by changing the dimensions of CT specimen and making it a DCB specimen?..

How can i find out energy release rate of the specimen?

Iam pretty new to Ansys

THANKS ALL

7000+ registered users of iMechanica

Submitted by Teng Li on

The number of registered users of iMechanica reaches 7000 on 11 May 2008. So far, our fellow iMechanicians have contributed 3172 posts and 7425 comments.  The evolving statistics of iMechanica
(see the latest updates here and here) shows a steady growth with no sign of slowing down. 

Check out the earlier milestones of iMechanica when the number of registered users reached:

6000

Hi,How to apply seismic accelaration on the BC in abaqus.thank you!:}

Submitted by NewerLi on

I am confused about apply BC of a model in abaqus. because I find that if I apply the accelaration of earthquake on BC, I must remove the fixed constraints applied on BC in previous step in abaqus. so the model become a free body without any constraints.

 any expert can give me some detailed suggestions?thank you very much!^_^

2008 Summer Research Seminars on Mechanics of Materials

Submitted by Rui Huang on

Place: University of Texas at Austin, WRW 312

Time: Friday 3:00 - 4:30 pm, May 23 - August 22, 2008

Faculty advisors: Chad Landis and Rui Huang

Speakers: postdocs and graduate students, including guest speakers from other groups

Tentative schedule:

(Date, Seminar title, Speaker name, Group affiliation)

 

Bloch-periodic boundary conditions in classical and enriched FEM

Submitted by N. Sukumar on

In the attached paper (accepted for publication), we present enriched FE formulations to impose Bloch-periodic boundary conditions. Bloch-periodic BCs arise in the description of wave-like phenomena in periodic media: periodic composites, Schrodinger equation in quantum mechanics, photonic band-gap materials, etc. For a perspective, see the J-Club on elastodynamic bandgaps and metamaterials that was organized by Biswajit Banerjee