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career as computational seismologist

Submitted by p_azizi on

Dear Mechanicians,

I have got an offer to do PhD in computational seismology in a very good university in Europe, however, I have no idea what sort of career I should expect after getting my PhD in this field. I got my BSc and MSc in mechanical engineering but have never worked in the field of geophysics and seismology. Therefore I am hesitating whether to take the offer or not. 

Strain rate values

Submitted by tonesthomas on

Can anyone guide me in clearing this doubt? I would like to get the values of normalized flow stresses Vs Strain rate for 304 L stainless steel and Ti-6Al-4V. This values will be used as an input for simulating fan blade-out event. This values will be used since this process involves higher velocities, higher deformations and it occurs in less time.

Computational homogenization of linear viscoelastic materials: a simplified approach

Submitted by Julien Yvonnet on

Several methods have been proposed for numerical homogeniation of linear viscoelastic materials, mainly based on Laplace transform or on multilevel (FE^2) approaches. In this paper, we introduce a much simpler technique based on a discrete representation of the effective relaxation tensor related to the homogeneous medium, which can then be used to evaluate the constitutive law in the form of a convolution product. In practice, calculations on the RVE reduce to 3 transient simulations in 2D and 6  in 3D. More details in

Postdoctoral Position in Solid Mechanics

Submitted by ravishm on

The Department of Industrial Engineering at the University of Pittsburgh anticipates an opening for a postdoctoral associate starting January 2012. The position’s primary area of research will focus on mechanics of micro-scale deformation processes and characterizing the thermomechanics of deformation at micrometer length-scales. Applicants with a strong background in computational solid mechanics and crystal plasticity will be preferred. 

Interested Applicants are requested to Email their CV to:  ravishm [at] pitt [dot] edu 

 


Damping of multi-layer composites

Submitted by ErwanVerron on

We recently published two papers that present an optimization method to design multi-layer composites with damping properties. The method consists in adding elastomeric layers in the composite. In this way, a multi-criteria optimization tool has been developed to determine the best geometrical and material properties of the composite: position of the elastomeric layers, layers thickness, ...

Two new books:

Submitted by Dr. Michael No… on

Two new books:

M. Nosonovsky and P.K.Rohatgi Biomimetics in Materials Science:
Self-healing, self-lubricating, and self-cleaning materials (Springer
Series in Materials Science, Vol. 152, 2011, Hardcover, ISBN
978-1-4614-0925-0)

M. Nosonovsky and B. Bhushan (eds.), Green Tribology Biomimetics, Energy
Conservation, and Sustainability (Springer Series: Green Energy and
Technology, 2011, Hardcover, ISBN 978-3-642-23680-8 )