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interface mechanics

Daniel Mulvihill's picture

Postdoctoral Researcher in the Mechanics & Tribology of Triboelectric Nanogenerators (University of Glasgow, UK)

The James Watt School of Engineering is looking for a postdoctoral researcher to contribute to/make a leading contribution to a large international EPSRC funded project looking at the physics and mechanics of triboelectric nanogenerators (or TENGs).  This position will focus on the mechanics and tribology of TENGs and will involve both experimental & modelling work. Of particular interest is modelling and experimental analysis aimed at understanding, predicting and optimising the contact area and charge transfer at triboelectric interfaces.

PhD (4 years) on micromechanical testing and interface characterization of composites

We are looking for a PhD student for a research project on microscale mechanical characterization of fiber reinforced polymer composites using in-situ microscopic techniques. Much more fundamental insights and measurements at the micro-scale are necessary to enable fully predictive multi-scale modelling and faster adaptation of composites. Therefore, we have developed advanced micromechanical test methods for fibre reinforced polymer composites based on in-situ optical and electron microscopy during loading.

Zhaohe Dai's picture

Mechanics at the interfaces of 2D materials

Dear iMechanica researchers,

I'd like to share an opinion paper that was written by Rui Huang, Kenneth Liechti, Nanshu Lu, and I for Current Opinion in Solid State & Materials Science. The aim is to discuss the mechanics research on 2D material interfaces in terms of recent developments and appeared challenges and opportunitiesHere is the link; Below, I also attached a copy of the manuscript and pasted the Abstract.

Zhaohe Dai's picture

Strain Engineering of 2D Materials: Issues and Opportunities at the Interface

In this progress report, we reviewed recent advances in strategies for applying mechanical strain into 2D materials and recent state‐of‐the‐art characterizations of interface mechanics for 2D material–substrate systems.

Laura De Lorenzis's picture

PhD and Post-Doc positions in Computational Mechanics at the Technische Universität Braunschweig, Germany

PhD and Post-Doc positions are now available at the Institut für Angewandte Mechanik of the Technische Universität Braunschweig, Germany. Both are full-time fixed-term positions for 2 years with the possibility of renewal.

Laura De Lorenzis's picture

PhD positions in Computational Mechanics at the University of Salento in Lecce, Italy

3 PhD positions are now available at the Department of Innovation Engineering at the University of Salento in Lecce, Italy. Funding is provided by the European Research Council Starting Researcher Grant project "INTERFACES-Mechanical Modeling of Interfaces in Advanced Materials and Structures".

The successful applicant will work on topics related to computational methods for interface modeling, isogeometric analysis, and multiscale methods.

Applicants should possess the following qualifications/attributes:

(a) an Engineering degree in a closely related area;

jqu's picture

Postdoc Position Available

Postdoc research fellows are needed in computational material science.  Experience in molecular level simulation of polymer/metal interfaces or CNT/Si and CNT/Cu interfaces are required.  Please send detailed academic CV to Jianmin Qu at

L. Roy Xu's picture

Journal Club Theme of 1 May 2008: Mechanical Behaviors of Polymer-matrix Nanocomposites

Choose a channel featured in the header of iMechanica: 

1. Definition of nanocomposites Nanocomposites are a novel class of composite materials whose reinforcements have dimensions in the range of 1-100 nm. Although nanoscale reinforcements (or nanofillers) of nanocomposites have different kinds of fillers such as nanofibers, nanowires, nanotubes and nanoparticles etc, their mechanical behaviors have some common features.

Ying Li's picture

How to characterize the interface?

Recently, I am interested in the interface between two different masses. But, I don’t know how to characterize the interface between them, especially the adhesive strength and the mechanics model.

L. Roy Xu's picture

Intersonic interface crack propagation (two shock waves)

This high-speed photography image recorded a very special fracture mechanics phenomenon: two fast cracks (as demonstrated by two shear shock waves) just met at the specimen center. After a steel projectile hit a model sandwich plate (steel/transparent Homalite -100 polymer/steel), stress wave propagation was observed in the form of photo-elasticity fringe movement. Two interfacial cracks from the two ends of the model sandwich plate, entered the field of view with very high speeds (> 1400m/s) and formed two shock waves (since the crack tip speed exceeded the shear wave speed of the polymer). For further technical details and more photos, click here to read the related paper (Xu and Rosakis, IJSS, 2002) For more real movies recorded from a high-speed camera( click here). It will take a few minutes to access my movie site since the size of each movie is quite large. But the movie resolution and layout from my site is much better than the movie from YouTube (below). © Dr. L. R. Xu (Vanderbilt University) and Dr. A. J. Rosakis (California Institute of Technology)

L. Roy Xu's picture

Biologically inspired design—natural convex joints reduce stress concentrations

Finite element stress analysis and corner optimization of a tree-steel railing interface/joint (Mattheck, 1998) showed that the naturally formed tree/railing joint was very effective in reducing stress concentration.

L. Roy Xu's picture

Interaction between an Interface and a Dynamic Incident Mode-I Crack

This high-speed photography image shows a mode I crack (representing by a symmetric photo elasticity fringe pattern) is approaching a weak interface in a brittle polymer (Homatel-100). The crack tip speed is around 300-400 m/s. There will be three possibly situations for dynamic interfacial failure mode transitions : 1) crack kinks at the interface, 2) crack directly penetrates the interface and 3) interface debonding occurs before the incident crack reaches the interface. Which case will occur?

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