Blog posts

Hello guys,

I am working on a project wherein there is a rubber material which gets compressed. Now I have the force-displacement curve for this rubber material. I intend to represent the rubber with NL springs.

The F-d curve mentiones the specimen details as 5*100mm. This i beleive is the tested specimen. Now how can I consider this for the whole rubber model???

I have n number of springs connected in parallel. How can I consider this when I use a F-d curve?

Any help is appreciated.

Thanks. 

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    The book “Corrosion and Materials in the Oil and Gas Industries”, edited by Reza Javaherdashti, Chikezie Nwaoha and Henry Tan, has been published by CRC Press/Taylor and Francis LLC, USA.

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An interesting presentation of the state of the question by  Dr Louis Cloutier, in 2008.

A two year postdoctoral research officer position on the development and implementation of computational techniques (hp-finite elements) for Maxwell's equations and their associated inverse problem is available at Swansea University. To apply for the position see

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Can someone answer me if Gurson-Tvergaard-Needleman void growth model is not suitable for flyer-plate impact simulations? I have come across some papers who have derived void growth equations to simulate fracture in ductile mateials like OFHC copper etc., subject to plate impact (uniaxial strain high strian rate loading). I have attached 3 of them. But none of them have used Gurson's yield function. I did not find any explanation if GTN model has any drawbacks in simulating spallation phenomena found in plate impact simulations.

5 Minutes, 100 Mb, but only THREE will win...

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