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Postdoctoral/PhD position

Submitted by Eran Bouchbinder on
job

A postdoctoral/PhD position in various non-equilibrium problems in solid mechanics is available at the Weizmann Institute of Science. Candidates should have a strong background in physics and/or theoretical mechanics, as well as experience with analytical and computational methods for solving partial differential equations. More details can be found in http://www.weizmann.ac.il/chemphys/bouchbinder/ For information about specific research projects, please send CV, a publications list and a statement of research interests to Dr.

Finite-Temperature Atomic Structure of 180^o Ferroelectric Domain Walls in PbTiO_3

Submitted by arash_yavari on
research
ferroelectrics
domain walls
Lattice Dynamics

In this letter we obtain the finite-temperature structure

of 180^o domain walls in PbTiO_3 using a quasi-harmonic

lattice dynamics approach. We obtain the temperature dependence of

the atomic structure of domain walls from 0 K up to room

temperature. We also show that both Pb-centered and Ti-centered

180^o domain walls are thicker at room temperature; domain

wall thickness at T=300 K is about three times larger than that of

T=0 K. Our calculations show that Ti-centered domain walls have a

super-mechanician?

Submitted by Temesgen Markos on
opinion
collaboration
imechanica. open source

This month's issue of SIAM news had a beautiful story of how one hard problem in mathematics was solved in less than six weeks using online collaboration. SIAM's story is not online yet, but here is another link to the same story .   SIAM news refers to a "super-mathematician" coming out of several individual mathematician spread all over the world.

Rubber fatigue testing. Displacement Controlled tests vs Force Controlled test

Submitted by Álvaro Sañudo Acosta on
Forums
Ask iMechanica

Hi,

 I need some advice about the next topic. I've been asked to develop a Haigh Diagram for Natural Rubber as André et al.{1} or Saintier et al. {2} do, and from it, be able to predict the fatigue life of a train suspension. This authors carried out the fatigue tests under displacement control and they considered that the sample had failed when a 1mm crack appeared, because they were studing the crack initiation.

Axisymmetric mesh in ANSYS Workbench

Submitted by davlars on
Forums
Ask iMechanica
Free Tags
axisymmetric mesh

Hi everybody,

 

I am trying to investigate a biaxial membrane inflation experiment of human aortic tissue by the help of ANSYS Workbench. Before examining the actual anisotropic tissue I however am trying to create a model based upon a hyperelastic, but still isotropic, material. I have chosen the pre-listed neoprene rubber in ANSYS Workbench.

 

Suresh's group Fighting Malaria: Understanding the Biomechanical Properties of Red Blood Cells

Submitted by Mike Ciavarella on
research
biomechanics
suresh
malaria
red blood cells
Suresh's group Fighting Malaria: Understanding the Biomechanical Properties of Red Blood Cells

MIT Dean of Engineering Subra
Suresh with graduate

student David Quinn. Photo: L. Barry Hetherington

 

Nanovea Chosen by TUM of Germany to Further Research

Submitted by NANOVEA on

Nanovea is proud to announce the installation of a Nano/Micro Mechanical Tester at Technische Universitat Munchen (Technical University of Munich, DE). The instrument was installed in the Department of Civil Engineering & Surveying at the CBM Center for Building Materials. The unique Nano and Micro modular capabilities of the Nanovea Mechanical Tester was chosen over several competitors. The instrument will be used to further industrial research in the mechanical behaviors of concrete and cementitious binder technology among others.

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