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A hierarchical hyperelastic-based approach for multi-scale analysis of defective nano-materials

Submitted by M. Jahanshahi on

In this paper, a continuum–atomistic multi-scale method is presented in modeling the nonlinear behavior of nano-materials under large deformation. In order to identify an appropriate strain energy function for crystalline nano-structures with different percentages of spherical voids, the hyperelastic method is employed for specimen whose behavior is determined based on the molecular dynamics analyses. In the atomistic level, the EAM many-body potential is employed to model the interactions between the atoms of Al RVEs.

Postdoc/PhD opening at UMich

Submitted by xpei on

We invite applications for a postdoctoral position and fully funded Ph.D. positions at the Department of Naval Architecture and Marine Engineering of the University of Michigan, Ann Arbor, in the general area of advanced manufacturing with an emphasis on dissimilar materials joining innovation and high-speed solid-state additive manufacturing. The research will serve as key enabler for high-volume production of next-generation multi-material lightweight structures in automobiles, trains, ships, and aircraft.

Combined experimental and numerical study of uniaxial compression failure of hardened cement paste at micrometre length scale

Submitted by shavijabranko on

Our group has recently published an article in which, for the very first time, we measure the compressive strength of hydrated cement paste at multi-metre length scale. This study shows that microscopic strength of cement-based materials is many times higher compared to their macroscopic strength.

The accepted version of the article can be viewed at:

Two PhD Open Positions in the Soft Intelligent Materials Laboratory at Ohio State

Submitted by Nan Hu on

The Soft Intelligent Materials Laboratory (https://zhaor.engineering.osu.edu/) directed by Prof. Renee Zhao is recruiting highly-motivated applicants to fill two open PhD positions (one in spring 2020 and one in autumn 2020) at the Ohio State University - Columbus.

Electrical resistance at rough surfaces in contact

Submitted by Dr. Hanaor - D… on

Electrical Contact Resistance of Fractal Rough Surfaces 

 

The presence of roughness at electrical contacts tends to involve contacting asperities across multiple scales. Depending on the nature of the contact between asperities on opposing surfaces, different conduction mechanisms take place. This is shown in the figure here.

A postdoc opening at UCLA

Submitted by Lihua Jin on

There is an immediate opening of a postdoctoral researcher in the Mechanics of Soft Materials Lab (https://www.msm.seas.ucla.edu/) in the Department of Mechanical and Aerospace Engineering at the University of California, Los Angeles. The research will be on experimental mechanics of soft materials, and fabrication of soft machines. The successful candidate should have a PhD degree with expertise in experimental polymer chemistry and polymer materials.

Symposium on Coupled Problems in Material Mechanics at EMMC17, May 27-29, 2020, Madrid.

Submitted by Laurence Brassart on

Dear colleagues,

We would like to draw your attention to the following symposium at the 17th European Mechanics of Materials Conference (EMMC17) to be held in Madrid, May 27-29, 2020:

S9: Coupled Problems in Material Mechanics 

which aims to gather scientists working across a variety of material systems to share recent advances in the modelling and simulation of multiphysics and coupled-field problems in solid mechanics. Experimental approaches in direct relation with model identification and validation are also welcome.

Postdoc opening at Purdue

Submitted by hgomez on

We have an opening for a postdoctoral researcher to perform original research on computational fluid dynamics, with particular emphasis on biofluids. The successful candidate will develop numerical methods to model coupled processes on high-performance computing platforms. This position is in the Gomez Research Group (https://engineering.purdue.edu/gomez/) in the Department of Mechanical Engineering at Purdue. This is a one-year postdoctoral appointment with the possibility of extension to a maximum of three years.