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Introducing iMechanica Video

If a picture is worth of 1,000 words, a 1-min video is worth of 1.8 million words.  1,000 word/frame x 30 frame/s x 60 s. 

LOL, seriously? Maybe not. But a well made video does provide information in an effective and efficient way that is often times impossible via other media. 

amartini's picture

University of California Merced - Postdoc in Computational Materials and Mechanics

The University of California Merced seeks applications for a postdoctoral scholar in the Martini Research Group. The position requires significant experience with atomistic simulations using empirical model-based simulation tools and strong computational skills in general, as well as excellent oral and written communication skills. Preference will be given to applicants whose research background includes investigation of the mechanical properties of nanoparticles. The position is for one year with the possibility of renewal.

Micro-cantilever testing on the short-term creep behaviour of cement paste at micro-scale

Our group has recently published a study on micro-scale testing of short-term creep of cement paste using microcantilever testing. If you are interested, more details can be found at: https://www.researchgate.net/publication/341668724_Micro-cantilever_test...

Luca-Deseri's picture

Mechanobiology predicts raft formations triggered by ligand-receptor activity across the cell membrane

Carotenuto A., Lunghi L., Piccolo V., Babaei M., Dayal K., Pugno N. M., Zingales M., Deseri L.*, Fraldi M. Mechanobiology predicts raft formations triggered by ligand-receptor activity across the cell membrane, Journal of the Mechanics and Physics of Solids 141 (2020) 103974 https://doi.org/10.1016/j.jmps.2020.103974
*Corresponding Author

tehrani's picture

Postdoc Position in “Multi-Scale Modeling of Composites”

 

A postdoctoral position in “Multi-Scale Modeling of Composites” is available in Tehrani Group in the Walker Department of Mechanical Engineering at UT Austin. The position starts in August 2020. The required qualifications for this position are as follows:

·       Acquired a Ph.D. in Mechanical Engineering or a closely related field before the position start date.

PhD position in modeling of the interaction between phase transformations and plasticty

PhD position(s) is available immediately in the Engineering Mechanics program in Aerospace Engineering Department at Iowa State University to perform theoretical and computational part of work on NSF-funded projects on the interaction between phase transformations and plasticity. Phase-field, micromechanical, and macroscale simulations using FEM are of interest, in close collaboration with experiments. Please send vita to Prof. Valery Levitas (vlevitas@iastate.edu).

Amit Acharya's picture

A possible link between brittle and ductile failure by viewing fracture as a topological defect

Amit Acharya

(to appear in Comptes Rendus Mécanique)

A continuum model of fracture that describes, in principle, the propagation and interaction of
arbitrary distributions of cracks and voids with evolving topology without a 'fracture criterion'
is developed. It involves a 'law of motion' for crack-tips, primarily as a kinematical consequence
coupled with thermodynamics. Fundamental kinematics endows the crack-tip with a topological
charge. This allows the association of a kinematical conservation law for the charge, resulting
in a fundamental evolution equation for the crack-tip field, and in turn the crack field. The
vectorial crack field degrades the elastic modulus in a physically justified anisotropic manner.
The mathematical structure of this conservation law allows an additive 'free' gradient of a scalar
field in the evolution of the crack field. We associate this naturally emerging scalar field with the
porosity that arises in the modeling of ductile failure. Thus, porosity-rate gradients affect the
evolution of the crack-field which, then, naturally degrades the elastic modulus, and it is through
this fundamental mechanism that spatial gradients in porosity growth affect the strain-energy
density and stress carrying capacity of the material - and, as a dimensional consequence related
to fundamental kinematics, introduces a length-scale in the model. A key result of this work is
that brittle fracture is energy-driven while ductile fracture is stress-driven; under overall shear
loadings where mean stress vanishes or is compressive, shear strain energy can still drive shear
fracture in ductile materials.

The paper can be found here

ehsan173's picture

Announcing the Inaugural CMES Young Researcher Award

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Announcing the Inaugural CMES Young Researcher Award

 

The first ever Computer Modeling in Engineering and Science Young Researcher Award recognizes outstanding research in computer modeling and simulation by a 2020 Computer Modeling in Engineering and Science author or coauthors.

mohsenzaeem's picture

Strain-induced work function in h-BN and BCN monolayers

Thomas, M.S. Manju, K.M. Ajith, S.U. Lee and M. Asle Zaeem. Strain-induced work function in h-BN and BCN monolayers.  Physica E: Low-dimensional Systems andNanostructures 123 (2020) 114180 (9 pages) 

Abstract

tongqing.lu's picture

Mechanics of Dielectric Elastomer Structures: A review

In the past decade, the development of theory has deeply revealed the electromechanical coupling deformation mechanism of dielectric elastomer (DE). Many theoretical predictions on highly nonlinear deformation of dielectric elastomer have been verified by experiments. With the guidance of theory, the voltage-induced areal strain of dielectric elastomer has been increased from 100% in the pioneering work to the current record of 2200% and the energy density of a dielectric elastomer generator has reached 780 mJ/g.

Teng Li's picture

EML Webinar by Prof. Norman Fleck on May 27, 2020

EML Webinar on May 27, 2020 will be given by Prof. Norman Fleck at the University of Cambridge via Zoom meeting. Discussion leader: Vikram Deshpande, Cambridge.

Title: New Horizons in Microarchitectured Materials

Meredith N. Silberstein's picture

Postdoc opening in ionotronics in the Silberstein group at Cornell University

A postdoctoral position on soft material ionotronics is available in the Silberstein lab (silbersteinlab.comto start in late summer/early fall of 2020. Expertise in electrochemistry and/or continuum mechanics is desirable. The ideal candidate will also be familiar with polyelectrolytes, gels, and/or ionomers.

Ahmad Rafsanjani's picture

Postdoc Position in Soft Robotics at SDU Biorobotics

The University of Southern Denmark invites applications from qualified doctoral graduates for a 3-year postdoc position in the field of Soft Robotics.

The application deadline is 14th June, 2020 | Apply Online

Bin Liu's picture

Intrinsic-to-extrinsic transition in fracture toughness through structural design: A lesson from nature

Published in Extreme Mechanics Letters: https://doi.org/10.1016/j.eml.2020.100685. Catastrophic failure of materials and structures due to unstable crack growth could be prevented if fracture toughness could be enhanced at will through structural design, but how can this be possible if fracture toughness is a material constant related to energy dissipation in the vicinity of a propagating crack tip.

dongqian's picture

postdoctoal position opening in Professor Wing Kam Liu's group

Dr. Wing Kam Liu, Walter P. Murphy Professor and Director of Global Center on Advanced Material Systems and Simulation, Northwestern University, invites applications for an open postdoctoral position within his research group.

 

Xuejun Fan's picture

PhD Opening at Delft University of Technology (TU Delft) for Solid Mechanics in Microelectronics Applications

The Electronic Components, Technology and Materials (ECTM) Group at Delft University of Technology is seeking a PhD candidate, who is available immediately. Applicants should have a recent Master degree with a strong research record in solid mechanics: multi-scale/ multi-physics modeling of advanced materials, computational mechanics for materials, structures and energy systems in extreme environments.

Kawai Kwok's picture

Ph.D. Opening in Deployable Structures at University of Central Florida

A Ph.D. opening in Deployable Structures is available in Dr. Kawai Kwok’s research group in the Mechanical and Aerospace Engineering department at University of Central Florida. The research will focus on developing a novel deployable blade structure using a combination of fabrication, experimental and computational techniques. Students with Bachelor or Master degrees in Aerospace Engineering, Mechanical Engineering, and other relevant disciplines are encouraged to apply.

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