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On stickiness of multiscale randomly rough surfaces

Submitted by Antonio Papangelo on
A new stickiness criterion for solids having random fractal roughness is derived using Persson's theory with DMT-type adhesion. As expected, we find stickiness, i.e., the possibility to sustain macroscopic tensile pressures or else non-zero contact area without load, is not affected by the truncation of the PSD spectrum of roughness at short wavelengths and can persist up to roughness amplitudes orders of magnitude larger than the range of attractive forces.

Research Assistant Professor and Postdoc Positions at Southern University of Science and Technology (SUSTech) /南方科技大学葛锜团队招聘研究助理教授/博士后

Submitted by KevinGE on

Our group at Southern University of Science and Technology (SUSTech) in Shenzhen China is looking for Research Assistant Professors and Postdocs with backgrounds of material science, mechanics, mechanical engineering or related fields.

Our rearch mainly fouces on  4D printing, functional 3D printing, mechanics of soft materials, soft robotics, flexible electronics.

We provide internatinally competitive salary.

Details can be found through the university website:

Ph.D. Research Positions in Bio-Inspired Self-Healing of Cementitious Materials

Submitted by Ali Ghahremaninezhad on

Ph.D. research positions are available immediately in the Advanced Materials Research Lab at the University of Miami to perform NSF-funded research in the area of bio-inspired self-healing of cementitious materials. Highly motivated applicants are encouraged to send a CV to Dr. Ali Ghahremaninezhad via email at a.ghahremani [at] miami.edu (a[dot]ghahremani[at]miami[dot]edu).

PhD position for EU/UK in Digital Manufacturing of Graphene-Enhanced Composites for Electric Vehicles (GraphEVe)

Submitted by MNasr on

This project will focus on developing innovative and advanced simulation tools (non-isothermal multi-scale multi-phase flow solver) to manufacture graphene-enhanced polymer composites, which can be used in in EVs with applications in battery cooling systems, battery module housing, and structure of the car body, with improved curing and cooling cycles, reduced time and cost, and tailored thermal-mechanical properties of parts.

 

Discussion of fracture paper #24 - The sound of crack growth

Submitted by ESIS on

Carbon fibre reinforced polymers combines desired features from different worlds. The fibres are stiff and hard, while the polymers are the opposite, weak, soft and with irrelevant fracture toughness. Irrelevant considering the small in-plane deformation that the fibres can handle before they break. It is not totally surprising that one can make composites that display the best properties from each material. Perhaps less obvious or even surprising is that materials and composition can be designed to make the composite properties go beyond what the constituent materials are even near.

Ph.D. position in the Department of Mechanical Engineering at UBC

Submitted by mponga on

A PhD position is available in the Modelling and simulation group in the Department of Mechanical Engineering at the University of British Columbia (UBC), Vancouver, Canada. The position is related to the computational design of lightweight alloys based on high-entropy alloys and metallic materials with nano-architected structure (see sample here). The ideal candidate should have a master degree or bachelors in the area of mechanical engineering.

Elastic behavior in porous materials

Submitted by Dr. Hanaor - D… on

In the work shown here:

Multiscale modeling of effective elastic properties of fluid-filled porous materials

The elastic deformation and its dependence on fluid displacement is studied at two distinct scales, to address the multi-scale nature of porous structures in nature.

 

 

 

 

 

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.