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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 )

Free Computation Cycling Time

Submitted by BShiari on

National Nanotechnology Infrastructure Network Computation (NNIN/C) Project at Michigan provides free computation cycling time for a limited time (Sept. 15, 2011 to Jan. 15, 2012) to support researches in Nanotechnology (Nano/Microsystems, Nanomaterials, Multiscale modeling, etc). To get a free computation account, please go to:

 www.lnf.umich.edu/NNIN/Computation/Registration/index.aspx

Poroelastic relaxation indentation of thin layers of gels

Submitted by Yuhang Hu on

We develop a method of poroelastic relaxation indentation (PRI) to characterize thin layers of gels.  The solution to the time-dependent boundary-value problem is obtained in a remarkably simple form, so that the force-relaxation curve obtained by indenting a gel readily determines all the poroelastic constants of the gel—the shear modulus, Poisson’s ratio, and the effective diffusivity.  The method is demonstrated with a layer of polydimethylsiloxane immersed in heptane.

Microindentation Mapping With Acoustic Emission On Glass

Submitted by NANOVEA on

Microindentation hardness mapping has been widely used to assess the variation of mechanical properties across a large surface area. However, with the study of applications such as glass it is the crack initiation that is of particular interest. It is for this reason that acoustic emission can be used during the mapping of indents to not only map hardness but also map the crack initiation values over the surface area.

dynamic fracture with Xfem

Submitted by bijan.jamali on

hi I am a student of mechanical engineering, Isfahan university of technology in master degree and the title of my thesis is:Rapid crack propagation in pressurized pipe

in order to use Abaqus X-fem for simulation of cracked pipe I have some essential questions :

1)Can I simulate rapid crack propagation of this geometry in Xfem? (with attention to the geometry of a pipe)

2)Is Xfem able to analyze Ductile fracture?

3)Is Xfem able to use larg deformation theory?

Impact Analysis using ANSYS/LS-DYNA

Submitted by balavenkatesh on

Hello sir,

 

    I'm working on high velocity impact analysis of solid particle
erosion, in which i have to simulate the impact of particle on the
target.

    I modelled the target as rigid and the particle as bilinear kinematic mat model...

    I gave initial velocity and acceleration for the particle.

    The surface to surface automatic contact is used

   3D element of soid 164(8 node hex elems) are used...