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Postdoctoral and Ph.D. positions in Experimental Solid Mechanics at Michigan State University

Submitted by Soonsung Hong on

Composite Vehicle Research Center (CVRC) at MSU has an immediate opening for a postdoctoral research associate to conduct research in non-destructive evaluation (NDE) and structural health monitoring (SHM) of composite materials in an effort to develop self-diagnostic composite structures for air and ground vehicles. 

http://www.egr.msu.edu/~shong/Postdoc.html

Elasticity "Exact" Solutions for Plates

Submitted by luciano demasi on

Many of you developed Finite Element codes. These codes are usually quite complex. So you all know the importance of testing your results to see if what you programmed makes sense. The usual approach is to compare your FEM program with somethig already published. With this in mind, I designed a series of "lectures" on the topic of elasticity solutions for plates. You can find the details in 

http://attila.sdsu.edu/~demasi/list_lectures.htm

Two materials scientists join the faculty of Harvard University

Submitted by Anonymous (not verified) on

Evelyn L. Hu, a pioneer in the fabrication of nanoscale electronic and photonic devices, has been named Gordon McKay Professor of Applied Physics and Electrical Engineering in Harvard University’s School of Engineering and Applied Sciences (SEAS), effective Jan. 1, 2009.  Read more

Impact in Composites

Submitted by pirexengaer on

Hello,

I'm doing some research in aircraft protection against impact, mainly refering to UAV's protection of the payload (avionics,etc..) during crash.

Does anyone knows where I can get some info about related topics (impact in composites, collision protection, reinforcement of structures, etc..)?

 

Thanks, Ivo Pires

W. M. Keck Institute Postdoctoral Fellowships at Caltech/JPL

Submitted by mjudd on

The W.M. Keck Institute for Space Studies at the California Institute of Technology announces an opportunity for highly qualified individuals to apply for postdoctoral fellowships to conduct research in space science and engineering. Please see http://www.kiss.caltech.edu for additional information.

Faculty Positions, Mechanical Science & Engineering, University of Illinois at Urbana-Champaign

Submitted by Linda Conway on

The Department of Mechanical Science and Engineering at the University of Illinois at Urbana-Champaign is actively seeking candidates for faculty positions in all areas of mechanical science and engineering.  This includes candidates whose research interests are in mechanical science and engineering but whose backgrounds are in another area of engineering, or in biology, chemistry, physics, or applied mathematics.  Information about the department, and the relevant research areas, can be found at http://mechse.illinois.edu/.

Covariant and contravariant stress tensors: difference between the Cauchy stress and the 2nd Piola-Kirrchoff stress

Submitted by Malik Ait-Bachir on
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I am currently reading a book about "Material Inhomogeneities in Elasticity" written by Gérard Maugin.

He brings up the covariancy and contravariancy of some well-known stress tensors and in particular that of the Cauchy stress tensor. I was not very familiar with the concept of covariance, so i read up on this very specific tensorial notion. 

I have been able to demonstrate easily that the deformation gradient F is a mixed tensor (covariant and contravariant).

Linearization procedure in nonlinear FEM

Submitted by phunguyen on

Hello,

As far as I know, there are two ways to derive the linearized equations (employed in the Newton-Raphson method) in nonlinear finite element methods. 

In the first approach, starting with the weak formulation, the FE approximations are substituted into the weak form, you then get the semi-discrete equations. After that, the linearization is applied on this discrete equation to get the tangent matrix. The book of Prof. Ted Belytschko followed this approach.