In our just published paper, we identify two ways to extract the energy (or power) flowing into a crack tip during propagation based on the power balance of areas enclosed by a stationary contour and a comoving contour. It is very interesting to find a contradiction that two corresponding energy release rates (ERRs), a surface-forming ERR and a local ERR, are different when stress singularity exists at a crack tip. Besides a rigorous mathematical interpretation, we deduce that the stress singularity leads to an accompanying kinetic energy at the crack tip.

Abstract

Two PhD positions and two postdoc positions are available at the University of Padua in the field of computational mechanics of materials. The work will involve building a multi-scale model to study contact, friction and lubrication.

For the PhD candidates, a Master Degree is required. Experience with programming is a requirement for PhD as well as postdoctoral applicants. Experience with dislocation dynamics and/or molecular dynamics simulations is appreciated.

Postdoc and PhD student positions are available at Arizona State University. Research background in at least one of the following areas is preferred.

1. Prognostics for fatigue and fracture

2. Probabilistic methods and reliability

3. Data analytics

4. Inverse problem and optimization

5. Dynamic system and network modeling

Title: Structural FEA Intern

Category: Internship in Industry

Employer: Schlumberger Technology Corporation

Location: Sugar Land, TX, USA

Opening Date: 04/27/2017

Our group has one postdoctoral position openings supported by Singapore University of Technology and Design(SUTD)-Digital Manufacturing and Design(DManD) Centre for the projects of multimaterial stereolithography for 3D/4D printing.

We are seeking self-motivated postdoctoral researchers with a Ph.D. degree on mechanical engineering, mechatronics, electronic engineering and the related fields.

The successful candidate is required to:

On behalf of the Center for Research and Development of Advanced Materials established by the Aristotle University of Thessaloniki and Texas A&M University Engineering Experiment Station, we would like to announce a summer school on Advanced Material Systems: Experimentation–Modeling–Commercialization. The summer school will be held from July 4–11, 2017 on the Aristotle University campus in Thessaloniki, Greece. 

The Division of Mechanics at Lund University, Sweden, invites applicants for a PhD position oriented towards multiscale modelling of grain boundaries in metals. The research program focuses on improving the understanding and modelling capabilities of impurity induced grain boundary embrittlement, with special emphasis fusion reactor materials, i.e. primarily tungsten. The ultimate goal of this research is to develop an atomistically-informed continuum-based theoretical and computational framework to predict the failure of impurity inhabited grain boundaries.

DTU Civil Engineering, DTU Mechanical Engineering and DTU Wind Energy are  inviting applications for three 3-year PhD positions starting summer 2017 as part of an exciting project ‘Understanding Fatigue though multi-scale testing and modelling’ in the new Villum Center for Advanced Structural and Materials Testing – CASMaT.

Apply for this job no later than 5 May 2017.

New article: Clarification of a point on rotations with small strain measures.

http://www.parresianz.com/fem/rigid-body-rotation-small-strain/

-- Biswajit