A perspective paper on flexoelectricity by Prof. Pradeep Sharma
A perspective paper on flexoelectricity by Professor Pradeep Sharma (University of Houston) is published in the March (2016) issue of the Journal of Applied Mechanics. A perspective paper describes an important, emerging field in mechanics. The first perspective paper, by Professor Huajian Gao (Brown University), has been downloaded more than 8000 times since its publication. This new paper by Professor Sharma is the 3rd perspective paper published in JAM. The paper is attached.
Orthogonality and closure relations in Stroh formalism
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Dear iMechanica members,
I deal with exteded Stroh formalism for piezoelectric media. I have problems with orthogonalization of Stroh´s matrices A, B, respectively how to fulfil the ortogonality relations (see attachments). I tried to "rape" it and made the left matrix inverse of the right matrix (then the product is an unit matrix) and I became very similar singularity expomemt as in the paper
PhD positions: (1) mechanics of porous media, (2) mechanobiology deadline extended
Announcing extension of the deadline of application for the two positions that I posted here last week. The deadline is now extended by one week to 21st February 2016.
A few experimental studies on the dynamic behavior of foam-like aligned carbon nanotubes
I'm posting a few experimental studies we have conducted on the dynamic behavior of hierarchical fibrous materials, using vertically aligned carbon nanotubes as a model material. I hope these will be useful to those who are interested in buckle-instabilities, multiscale behavior, and energy absorption mechanisms.
An overview:
Special Volume of the International Journal of Fracture
As part of the celebration of the 50th Anniversary of the International Journal of Fracture, two special volumes were published in 2015. All articles of the 2nd 50th anniversary issue published in Nov/Dec 2015 are now freely accessible at the journal site until the 7th of April. These articles (and the ones published in the 1st 50th anniversary issue published in Jan/Feb 2015) provide reviews and perspectives on many aspects of fracture. You are welcome to browse thorough these articles and provide feedback on this blog!
Matlab source code for XFEM implementation (2D dynamic crack propagation problem)
Hello everyone,
I was looking for a Matlab source code for implementing XFEM to solve a dynamic problem (specifically dynamic crack propagation problem). I found several source codes which only solve static problems (they don't calculate mass matrix and they don't do the time integration).
My research goal is to remove the oscillations from stress intensity factors for a dynmic crack propagation problem. I will really appreciate any kind of help/suggestions.
With respectfully
Bhuiyan, A B M Abdul Ali
Post-doctoral positions at National University of Singapore (NUS) and Singapore University of Technology and Design (SUTD)
Starting April 2016, we will have openings for two post-doctoral fellow positions in experimental and computational mechanics of advanced polymers. These positions will support a new research program between Singapore University of Technology and Design (SUTD) and National University of Singapore (NUS) funded by Agency for Science, Technology and Research (A*STAR). The project focuses on synthesizing, characterizing, modeling, and simulating the thermo-mechanical behavior of polymers with covalent adaptable networks (CANs), e.g. vitrimers.
PhD Positions in Computational Mechanics and Experimental Biomechanics - University of Illinois at Chicago
We are looking for candidates for doctoral positions in the areas of a) computational mechanics, and b) experimental biomechanics.
Candidates must have earned a M.Sc. degree in Mechanical Engineering or in a related field from an accredited University.
Candidates with strong background in numerical simulations (e.g. C++ and FORTRAN programming skills, finite element analysis, and high performance computing) and previous experience in experimental characterization of tissues are highly desirable.