We have discovered a peculiar form of fracture that occurs in a highly stretchable silicone elastomer (Smooth-On Ecoflex 00–30). Under certain conditions, cracks propagate in a direction perpendicular to the initial pre-cut and in the direction of the applied load. In other words, the crack deviates from the standard trajectory and instead propagates perpendicular to that trajectory. The crack arrests stably, and thus the material ahead of the crack front continues to sustain load, thereby enabling enormous stretchabilities. We call this phenomenon 'sideways' and stable cracking.

Wed, Jun 5, 2019 4:00 PM - 4:15 PM BST

Join this webinar to learn about the Simpleware-CCNY head model which offers a significant resource for anyone wanting to evaluate product designs and simulate how they interact with the head.

The Simpleware-CCNY head model is a highly detailed representation of the head created in Simpleware software from scan data. The City College of New York (CCNY) is the source of the data, which consists of T1 and T2 weighted scans performed on a Siemens Trio TIM 3.0 Tesla scanner.

Several fully supported Ph.D. positions are open for fall 2019 in the Advanced Hierarchical Materials by Design Lab at Louisiana Tech University on multiscale modeling of additively manufactured parts and processes. During this project, the candidate will have the opportunity to collaborate with NASA research centers, national labs, and different universities across the nation such as MIT and LSU.

ACS Nano (2019), in press (https://pubs.acs.org/doi/10.1021/acsnano.9b01794).

Shuze Zhu, Pascal Pochet, and Harley T. Johnson

Materials Today (2019), in press (https://doi.org/10.1016/j.mattod.2019.03.016).

Yubing Zhou, Chaoji Chen, Shuze Zhu, Chao Sui, Chao Wang, Yudi Kuang, Upamanyu Ray, Dapeng Liu, Alexandra Brozena, Ulrich H.Leiste, Nelson Quispe, Hua Guo, Azhar Vellore, Hugh A. Bruck, Ashlie Martini, Bob Foster, Jun Lou, Teng Li, Liangbing Hu

The Postdoctoral Scholar is responsible for independent and collaborative development, implementation, and analysis of scientific research in the discipline of computational and experimental biomechanics. Responsibilities include management of all aspects of research related to biomechanical characterization and computer modeling of biological tissue and implants in Vahdati Lab. The research projects include investigation of mechanopathologies of soft and calcified tissue and design of personalized medical devices.

EMI, the Engineering Mechanics Institute of ASCE, is pleased to announce the 2019 winners of prestigious Society and Institute awards:

https://www.asce.org/engineering-mechanics/news/20190502-emi-2019-award…

The awards will be presented on June 20 at the awards banquet of the EMI 2019 conference at Caltech in Pasadena, California (http://emi2019.caltech.edu/).

A recent study has drawn a new aspect on the role played by the surface stress with a torsional profile on silicon nanowires to address the existing controversy from experimental and computational studies (https://www.researchgate.net/publication/327768951_Surface_Stress_Effec…).

This paper aims at assessing the influence of environmental parameters on the modal characteristics of age-old masonry constructions. The results of a long-term ambient vibration monitoring of the San Frediano bell tower in Lucca (Italy) are reported. The tower, dating back to the 11th century, has been fitted along its height with four triaxial seismometric stations, which were left active for about one year.

https://doi.org/10.1016/j.engstruct.2017.10.045

Enjoy !

Colleagues:

Please share the attached recruitment flyer with your post-docs or fresh PhD students. This is an open rank and open discipline search. Please feel free to contact me if you have any questions.

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Aman Haque, Ph.D., MBA
Professor of Mechanical Engineering, Penn State University
317A Leonhard Building, University Park, PA 16802
Tel: (814) 865-4248; Fax: (814) 865-9693
URL: http://www.personal.psu.edu/mah37/