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Using LEFM for analyzing crack in a non linear material

Submitted by vivekiitm8 on

Dear all,

I am trying to find the crack tip SIF in Polyurethane which an elastomer. It behaves like a nonlinear elastic material with the initial small linear elastic region. Can I use a multi-parameter stress field equation (William's crack tip stress field equation) to get the SIF of the crack tip.

Thank you

Employment Opportunity: Division Director, Division of Civil, Mechanical and Manufacturing Innovation, National Science Foundation (NSF)

Submitted by Siddiq Qidwai on

National Science Foundation  

2415 Eisenhower Avenue   —   Alexandria, Virginia 22314

DEAR COLLEAGUE LETTER: DIVISION OF CIVIL, MECHANICAL AND MANUFACTURING INNOVATION (CMMI) – EMPLOYMENT OPPORTUNITY FOR DIVISION DIRECTOR POSITION 

February 2, 2018 

Dear Colleague:

Multidisciplinary Cancer Research UK 4-year PhD Studentship

Submitted by emadmoeen1 on

We are seeking an outstanding PhD candidate to join Mechanics in Biology and Medicine laboratory (MecBioMed.com) as part of a multidisciplinary collaborative project between Dr Emad Moeendarbary at the Department of Mechanical Engineering (University College London, UCL) and Dr Fernando Calvo at the Division of Cancer Biology (Institute of Cancer Research, London).

Multiple postdoc and PhD positions at Columbia University

Submitted by Xi Chen on

The Department of Earth and Environmental Engineering at Columbia University is launching a new Center for Advanced Materials for Energy and Environment. The Center emphasizes on both fundamental and applied research, in particular those related to technology development. We have multiple immediate openings for strongly motivated postdocs and PhD students.

Advancing the frontiers of silk fibroin protein-based materials for futuristic electronics and clinical wound-healing (Invited review)

Submitted by Jingjie Yeo on

https://doi.org/10.1016/j.msec.2018.01.007 The present review will introduce the basic concepts of silk-based electronics/optoelectronics including the latest technological advances on the use of silk fibroin in combination with other functional components, with an emphasis on improving the performance of next-generation silk-based materials. It also highlights the patterning of silk fibroin to produce micro/nano-scale features, as well as the functionalization of silk fibroin to impart antimicrobial (i.e. antibacterial) properties.

Postdoc in Mechanics of Woven and Fiber-based materials at the University of Pittsburgh

Submitted by iasigal on

Applications are invited for a postdoctoral position in an exciting project applying advanced fiber-based mechanics to understand the eye and prevent blindness. The successful applicant will join an interdisciplinary team of engineers, clinicians and basic scientists at the Laboratory of Ocular Biomechanics of the University of Pittsburgh.