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Soft elastic layers with top and bottom surfaces adhered to rigid bodies are abundant in biological organisms and engineering applications. As the rigid bodies are pulled apart, the stressed layer can exhibit various modes of mechanical instabilities. In cases where the layer’s thickness is much smaller than its length and width, the dominant modes that have been studied are the cavitation, interfacial and fingering instabilities. Here we report a new mode of instability which emerges if the thickness of the constrained elastic layer is comparable to or smaller than its width.

In this paper we are concerned with finding exact solutions for the stress fields of nonlinear solids with non-symmetric distributions of defects (or more generally finite eigenstrains) that are small perturbations of symmetric distributions of defects with known exact solutions. In the language of geometric mechanics this corresponds to finding a deformation that is a result of a perturbation of the metric of the Riemannian material manifold. We present a general framework that can be used for a systematic analysis of this class of anelasticity problems.

The size- and shape-dependency of the chemo-mechanical behavior of spherical and ellipsoidal nanoparticles in Li-ion battery electrodes are investigated by a stress-assisted diffusion model and 3D finite element simulations. The model features surface tension, a direct coupling between diffusion and elasticity, concentration-dependent diffusivity, and a Butler-Volmer relation for the description of electrochemical reactions that is modified to account for mechanical effects.

Abstract

We are intersted in candidates with expertise in mechanics of materials and additive manufacturing. 

There are also two more positions in Biomedical and Chemical engineering, below are the details.

Salary Range: Commensurate with qualifications and experience.

Starting Date: August 21, 2017

Eligibility: Employment is contingent upon proof of eligibility to work in the United States.

The College of Engineering at Temple University invites applications for the position of Chair of the Mechanical Engineering Department. The Mechanical Engineering Department serves more than 550 undergraduate majors and 50 graduate students, and includes 21 full-time faculty and three full-time support staff.

Dear All,

Prof. Nikhil Koratker , Editor of CARBON, is a world-renowned researcher in the field of energy research. Please visit his homepage for detail. 

The Department of Mechanical Engineering at the University of California, Santa Barbara invites applications for two full-time faculty positions with an anticipated start date of July 1, 2017, or later. The Department is looking for exceptional individuals in all core areas of Mechanical Engineering with particular emphasis in fluid mechanics (tenure-track Assistant Professor), and micro and nanoscale thermal sciences and their application to energy systems (tenure-track Assistant Professor or tenured Associate Professor).