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Displacement Controlled Geometric Nonlinear FEM

Submitted by vasudeo on
education
Geometric Nonlinear FEM
Hi I am working on numerical simulation of petroleum pipeline subjected to
seismic hazards. I have developed Geo-Nonlinear FEM code for load
controlled which i have compered with Ansys and it is working fine.
now i would like to apply fault  displacement for this i need to
convert my code to displacement controlled using penalty approach
but it is not converging. i will be very happy if any one can suggest
how i can over come this problem or plz sugest me some book or papre. here I am using Newton-Raphson method 
 

Lectures on Soft Active Materials, 3rd edition

Submitted by Zhigang Suo on
education
suo group research
slides
soft active materials

At the invitation of Yonggang Huang, I’ll give 4-hour lectures at the NSF Summer Institute Course on the Mechanics of Soft Materials.   I attach the slides of the lectures, to be given on Monday, 10 May 2010.  An abstract of the lectures follows.

HyperMesh data transfer to MySQL by Tcl script

Submitted by Nguyen Van Chau on
education
HyperMesh data transfer to MySQL by Tcl script

HyperMesh data transfer to MySQL by Tcl script

Nastran OP2 Structure

http://wwwiutp.univ-poitiers.fr/COURS-DOCS/docu/ideas/SDRCHelp/LANG/French/slv_ug/NAS_results_imported.htm 

Femap API http://www.femto.nl/php/index.php?hoofd=52&sub=220

http://www.scribd.com/doc/13083818/tmgfflow

Calculate bimaterial H-matrix for orthotropic material.

Submitted by BrianBak on
Forums
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education

Hi

I have a question regarding calculating the B-matrix which is used to create the bimaterial H-matrix in the article: "Singularities, Interfaces and Cracks in Dissimilar Anisotropic Media" by Zhigang Suo, 1989. 

The shape of the Eiffel Tower

Submitted by Mike Ciavarella on
education
optimal design
eiffel tower
shape

I've got interested, since I am going with about 10 of my students to Paris for the Euromech conference I am coorganizing in July, by the design of the Eiffel Tower.  Eiffel was a great engineer, and indeed his shape of the tower apparently comes from his ingenious idea of  balancing weigth and wind pressure so that there is little need of foundations.  WIKIPEDIA has an account of this design idea, and the resulting integro-differential equation.

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