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dislocation dynamics

Amit Acharya's picture

From dislocation motion to an additive velocity gradient decomposition, and some simple models of dislocation dynamics

Amit Acharya         Xiaohan Zhang

(In Ph. G. Ciarlet and Ta-Tsien Li, editors, Proceedings of the International Conference on Nonlinear and Multiscale Partial Differential Equations: Theory, Numerics and Applications held at Fudan University, Shanghai, September 16-20, 2013, in honor of Luc Tartar. Series in Contemporary Applied Mathematics. Higher Education Press (Beijing), and World Scientic (Singapore), 2014)

Position is not any more available ---- Research position at TU Darmstadt, Germany

At the Division of Mechanics
of Functional Materials in the institute of Materials Science, TU Darmstadt the
following research position is to be filled as soon as possible:

 Research position (E 13 TV – TU
Darmstadt),
Postdoc/Doctoral Candidate

The position is
scheduled for three years.

In situ nanocompression testing of irradiated copper

Dear colleagues,

we recently published a paper on measuring bulk properties of irradiated copper from nanoscale samples:

http://www.nature.com/nmat/journal/vaop/ncurrent/full/nmat3055.html

Hope you find this interesting!

 

Daniel

Steffen Brinckmann's picture

Phd or Postdoc position on multiscale mechanics in Bochum/Germany

The Interdisciplinary Centre for Advanced Materials Simulation (ICAMS) is a new research centre at the 
Ruhr­University Bochum, Germany. At ICAMS an interdisciplinary team of scientists from engineering, 
materials science, chemistry, physics and mathematics is working on the development and application 
of a new generation of simulation tools for multi­scale materials modelling. 

Partial Dislocation Tutorial for FCC Metals

It is well known thatdislocations in FCC metals are composed of partial dislocations separated bystacking faults.  When consideringthe reactions of dislocations with each other, such as in DD simulations, it is necessary to determine therelative positions of the partials in order to correctly describe theconfigurations that are created in the reactions.  Here we describe a geometric method for correctly determiningthe relative positions of the partials. The results we obtain can also be found by applying an axiom, or rule,given in the book by Hirth and Lothe. At the end of this tutorial we

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