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Real-Time Stress Measurements in Germanium Thin Film Electrodes during Electrochemical Lithiation/Delithiation Cycling

Submitted by Siva P V Nadimpalli on

Real-Time Stress Measurements in Germanium Thin Film Electrodes during Electrochemical Lithiation/Delithiation Cycling (http://jes.ecsdl.org/content/162/14/A2840)

Siva P. V. Nadimpalli, Rajasekhar Tripuraneni, and Vijay A. Sethuraman

Stress Evolution in Lithium-ion Composite Electrodes during Electrochemical Cycling and Resulting Internal Pressures on the Cell Casing

Submitted by Siva P V Nadimpalli on

Stress Evolution in Lithium-Ion Composite Electrodes during Electrochemical Cycling and Resulting Internal Pressures on the Cell Casing (http://jes.ecsdl.org/content/162/14/A2656)

Siva P.V. Nadimpalli, Vijay A. Sethuraman, Daniel P. Abraham, Allan F. Bower, and Pradeep R. Guduru

Postdoc Position at Vanderbilt University Multiscale Computational Mechanics Lab

Submitted by Caglar Oskay on

We welcome applications for a post-doctoral position in the Multiscale Computational Mechanics Laboratory (MCML) at Vanderbilt University. MCML is a part of the interdisciplinary Multiscale Modeling and Simulation (MuMS) facility.

Suppression of Shear Banding and Transition to Necking and Homogeneous Flow in Nanoglass Nanopillars

Submitted by Shailendra on

In order to improve the properties of metallic glasses (MG) a new type of MG structure, composed of nanoscale grains, referred to as nanoglass (NG), has been recently proposed. Here, we use large-scale molecular dynamics (MD) simulations of tensile loading to investigate the deformation and failure mechanisms of Cu64Zr36 NG nanopillars with large, experimentally accessible, 50 nm diameter. Our results reveal NG ductility and failure by necking below the average glassy grain size of 20 nm, in contrast to brittle failure by shear band propagation in MG nanopillars.

Hydraulic Fracture and Toughening of a Brittle Layer Bonded to a Hydrogel

Submitted by Alessandro Luc… on

Abstract: Brittle materials propagate opening cracks under tension. When stress increases beyond a critical magnitude, then quasistatic crack propagation becomes unstable. In the presence of several precracks, a brittle material always propagates only the weakest crack, leading to catastrophic failure. Here, we show that all these features of brittle fracture are fundamentally modified when the material susceptible to cracking is bonded to a hydrogel, a common situation in biological tissues.

Open Postdoc Position Applied/Computational Mechanics, University of Stuttgart

Submitted by Christian Miehe on

at the Institute of Applied Mechanics at the University of Stuttgart (http://www.mechbau.uni-stuttgart.de/ls1/index.html). We are looking for a highly motivated young researcher with a background in engineering or mathematics and with experience in continuum modeling of solids. Applications should be sent to Christian Miehe via email (christian.miehe (at) mechbau.uni-stuttgart.de).