iMechanica

Dear iMechanica readers,

There is an intern position available in Schlumberger-Doll Reserach. Please see below. More details of the position are in the attachement. Please feel free to forward this to anyone you think may be interested.

Candidates can apply by submitting an application (include resume, coursework transcripts, a presentation not exceeding 20 pages) to Meng Qu (mqu@slb.com). 

Thanks!

Regards,

Tianxiang

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One or two fully funded PhD positions (tuition plus research/teaching assistantships) are immediately available in Dr. Zhaoxu Meng’s Lab in the Department of Mechanical Engineering at Clemson University during the academic year 2019~2020 (can start from spring semester).

Dear all,

Our group has just published a paper titled "Development of strain hardening cementitious composite (SHCC) reinforced with 3D printed polymeric reinforcement: Mechanical properties" . Interested readers can find it at: https://www.researchgate.net/publication/333674067_Development_of_strain...

Regards,

Branko

ABSTRACT: Cell migration is essential for regulating many biological processes in physiological or pathological conditions, including embryonic development and cancer invasion.

I hope some of you will find this work interesting. We present a new Weibull framework for cleavage fracture that incorporates strain gradient plasticity and can estimate the three parameters of Weibull-type models without any prior assumptions. A post-print is available at www.empaneda.com

Gradient-enhanced statistical analysis of cleavage fracture

Emilio Martínez-Pañeda, Sandra Fuentes-Alonso, CovadongaBetegón

European Journal of Mechanics - A/Solids 77, 103785 (2019)

The programmable shape transition of a two dimensional sheet to a three-dimensional (3D) structure in response to a variety of external stimuli has recently attracted increasing attention. Among the various shape changing materials, shape memory polymers (SMPs) can fix their temporary shape and/or their length and recover under proper thermal treatment.

Many living organisms undergo conspicuous or abrupt changes in body structure, which is often accompanied by a behavioral change. Inspired by the natural metamorphosis, robotic systems can be designed as reconfigurable to be multifunctional. Here, a tissue-engineered transformable robot is developed, which can be remotely controlled to assume different mechanical structures for switching locomotive function.

Title: Non-uniform curvature and anisotropic deformation control wrinkling patterns on tori

One or two funded Ph.D. positions are available in the Department of Mechanical Engineering at the University of Wyoming, with the earliest starting date in Fall 2019. The candidates will join the research group of Dr. Xiang Zhang (new faculty to join in Fall 2019) working in the general area of multiscale/multiphysics computational mechanics. Particularly, self-motivated individual interested in working in one or multiple of the following areas are strongly encouraged to apply:

Bones not only support and protect the various organs of our body but provide structure and enable mobility making them the most important structural materials in the human body. While aging, diet and health are known to significantly affect the structural integrity and fracture resistance of bone, fatigue, a significantly more important loading condition, is rarely studied.

The Materials Theory Group at the School of Materials Engineering of Purdue University has a post-doctoral opening in the area of modeling of thermal transport in crystalline solids. The postdoc will use Boltzmann Transport Equation approach to investigate the phonon and electron thermal transport in crystalline solids with defects. Applicants with closely related theory background in physics, materials science, mechanical engineering, or other majors are encouraged to apply. The ideal candidate is one who is strongly interested in the fundamental concepts of thermal transport and related computational modeling, and must have excellent programming skills. To apply, please send a curriculum vita with list of publications and the names and contact information of two references to Professor Anter El-Azab (aelazab@purdue.edu). The cover letter should explain the relevance of the applicant background to the postdoc research topic above. This position is part of the DOE funded Energy Frontiers Research Center for Thermal Energy Transport under Irradiation (TETI), and the postdoc is expected to collaborate with a large team of theorists and experimentalists. The position is available now and will remain open until filled.

EEO/AA Policy:

Purdue University is an EOE/AA employer. All qualified individuals, including minorities, women, individuals with disabilities, and veterans are encouraged to apply.

Department Website https://engineering.purdue.edu/MSE

Please see the attached job description. The position will be for 1 year initially and can be extended based on the performance and funding availability.

Good afternoon,

We recently published a paper using VR that might be of interest:

Muhammad Omer, Lee Margetts, Mojgan Hadi Mosleh, Sam Hewitt & Muhammad Parwaiz (2019) Use of gaming technology to bring bridge inspection to the office, Structure and Infrastructure Engineering, DOI: 10.1080/15732479.2019.1615962

The Institute of High Performance Computing, part of A*STAR in Singapore, is seeking a talented, motivated researcher to hire with extensive experience in computational mechanics:

A. Papangelo, J. Scheibert, R. Sahli, G. Pallares, and M. Ciavarella
Phys. Rev. E 99, 053005 - https://journals.aps.org/pre/abstract/10.1103/PhysRevE.99.053005

R. Sahli, G. Pallares, A. Papangelo, M. Ciavarella, C. Ducottet, N. Ponthus, and J. Scheibert
Phys. Rev. Lett. 122, 214301 – https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.122.214301

Check out our latest publication on porcine liver biomechanics under high strain rate conditions -

"Mechanical Response of Porcine Liver Tissue under High Strain Rate Compression", Bioengineering, 2019, 6(2), 49; https://doi.org/10.3390/bioengineering6020049

https://www.mdpi.com/2306-5354/6/2/49

More often than not I find in the books I read the information about the von Mises yield cirterion without mentioning any contribution of Maksymilian Tytus Huber in this field. E. g. I'm reading now "Materials for Nuclear Plants" by Wolfgang Hoffelner. When discussing the yielding conditions of the material he refers to von Mises, Hencky and even to Maxwell, but does not mention Huber. M. T. Huber anticipated to some extent the criterion of Mises already in 1904 (von Mises published his paper in 1913), but is not recognized by most of mechanicians.

Some metals, particularly annealed low-carbon steel, or mild steel, show a discontinuity when transitioning from elastic to plastic deformation that produces the yield point phenomenon in the stress strain curve.

Conclusions

We are glad to announce the International Symposium Recent Advances in Mechanics of Solids and Structures in honour of Prof. Davide Bigoni's 60th birthday.
The event will be held in Trento on June 6-7, 2019.

Tensile testing is among the most standard tests performed by universal testing machines yet depending on how the test specimen is used in its native environment, setting up the tensile test method is not always straightforward. Wide width tensile testing is a type of tensile testing procedure used with specimens that are prepared with wider width than the standard tensile specimen coupons. This blog posts covers wide width tensile testing, standards outlining wide width testing methods, and the necessary equipment.

Journal Applied Sciences
https://www.mdpi.com/journal/applsci/special_issues/Architectural_Acoustics

Dear Colleagues,

The University of Tulsa Department of Mechanical Engineering is searching for a postdoctoral researcher to support our recently awarded a U.S. Department of Energy Solar Energy Technology project to develop novel a CSP Collector system https://www.energy.gov/eere/solar/seto-fy2018-concentrating-solar-therma... TU and collaborators will develop a new carbon-based receiver system with a bio-inspired microvascular architecture.

Enthusiastic and highly motivated postdoctoral scientists are sought to work with Dr. Kun Zhou at the School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore on the following areas:

1. Metal printing and process modeling (DED or SLM printing)

2. Polymer printing (polymer synthesis, modification and MJF/SLS printing)