iMechanica

EML Webinar on 16 December 2020 will be given by Dave Weitz, Harvard University. Discussion Leader Jia Liu, Harvard University.

Title: Snap, Speckle and Spot: Sight and Sound of Hydraulic Fracture

Five PhD scholarships (36 months) are available within the project LIGHTEN at UCL, TU Delft and University of Trento. The project is funded through Marie Skłodowska-Curie Actions (MSCA) Innovative Training Networks – European Industrial Doctorate.

Each scholarship is unique, has different recruiting institutions and advisors.

Deadlines in January 2021. The start date is 1st of May 2021.

I came across an interesting theory for fatigue crack propagation from collegues in Delft, I think the group of prof Benedictus, but I have mixed feelings about it, because while there seems to be something very interesting experimentally, there seems to be some confusion between concepts of energy balance like Griffith seminal theory of fracture (which do not apply in fatigue) and Paris type of law, which are only weak forms of power law scalings which depend on all dimensionless parameters of the problem, so that C and m in Paris are not material constants, and there is no energy balance

The Department of Mechanical Engineering at University College London (UCL) wishes to strengthen, and broaden, its current research activities through the recruitment of an exceptional lecturer in Flight Mechanics, with a proven research track record in spacecraft mechanical design or space flight dynamics and control.

Application Deadline: January 6, 2021.

I attach a preprint of a note on the elegant and interesting and simple theory by Afferrante and Carbone on ultratough peeling of an elastic tape from a viscoelastic substrate.   Any comment is most welcome.   Regards, MC

Dr. Wentao Yan's group at the Department of Mechanical Engineering, National University of Singapore (NUS), focuses on metal additive manufacturing: computational modeling, experimental investigation and data analytics.
There are two openings for postdoctoral fellows available immediately. The candidates are required to have expertise in one of the following areas: 1) high-entropy alloys; 2) hot cracking and thermal stress; 3) multiphase/fluid-particle flow modeling. The expertise on additive manufacturing is a plus but not a must.

Applied Mechanics Reviews (AMR) is the flagship review journal of the American Society of Mechanical Engineers (ASME) with 2019 impact factor 6.733.

Extended deadline to 27 January 2021

ICBME 2021

2nd International Conference on Biomechanics and Medical Engineering 2021

10-11 March 2021 using virtual platform.

EML Webinar on 9 December 2020 will be given by Jian Ping Gong, Hokkaido University. Discusion Leader: Rong Long, University of Colorado.

dear Collegues

This work addresses the determination of yield surfaces for geometrically exact elastoplastic rods. Use is made of a formulation where the rod is subjected to an uniform strain field along its arc length, thereby reducing the elastoplastic problem of the full rod to just its cross-section. By integrating the plastic work and the stresses over the rod's cross-section, one then obtains discrete points of the yield surface in terms of stress resultants. Eventually, Lamé curves in their most general form are fitted to the discrete points by an appropriate optimisation method.

Dear Prospective Participants,

We are looking for strongly motivated Postdocs and/or Ph.D. students to join our group in the Department of Mechanical Engineering & Materials Science at Duke University. Two openings with primary focuses on flexible electronics and programmable matter are available immediately. 

One position for a PhD Student in Experimental Biomechanics for 3-4 years; expected from April 1, 2021 at the Institute of Biomechanics in Graz, Austria.

Acceptance conditions:
M.S. in Biomedical Engineering, Experimental Physics, Mechanical or Civil Engineering or related fields and experience, with the desire to pursue a PhD degree.

Dear iMechanicians, I hope that our latest JMPS paper is of interest to you. We show how the phase field paradigm can be extended to model localised corrosion (aqueous electrolyte-solid interface) and the associated damage mechanisms. 

C. Cui, R. Ma, E. Martínez-Pañeda. A phase field formulation for dissolution-driven stress corrosion cracking. Journal of the Mechanics and Physics of Solids 147, 104254 (2021)

https://www.sciencedirect.com/science/article/pii/S0022509620304622

A central tool of nonlinear anelasticity is the multiplicative decomposition of the deformation tensor that assumes that the deformation gradient can be decomposed as a product of an elastic and an anelastic tensor. It is usually justified by the existence of an intermediate configuration. Yet, this configuration cannot exist in Euclidean space, in general, and the mathematical basis for this assumption is on unsatisfactory ground.

3D Printing of Batteries: Fabrication, Materials and Challenges 

Yaokun Pang, Changyong Cao*

Laboratory for Soft Machines & Electronics, Michigan State University

1. Introduction

The Department of Mechanical Engineering at the University of California, Merced (UC Merced) is looking for highly competitive and enthusiastic applicants for our Master’s and Ph.D. programs, with a starting date of Fall 2021. The department is active in both classical end emerging areas of research in mechanical engineering.

The paper "Estimating static/dynamic strength of notched unreinforced concrete under mixed-mode I/II loading" by N. Alanazi and L. Susmel in Engineering Fracture Mechanics 240 (2020) 107329, pp. 1-18, is a readworthy and very interesting paper. Extensive fracture mechanical testing of concrete is throughly described in the paper.

I would like to share another article from my group just published in CMAME. I think this is an interesting approach towards the automatic generation of constitutive laws for arbitrary microstructures:

https://authors.elsevier.com/a/1bxlSAQEIt1ls

The article focuses on how to systematically create constitutive laws using only:

1) Available microstructural models

2) Machine learning techniques

The winter school on Trends on Additive Manufacturing for Engineering Applications will be held in Timisoara (Romania),

25-29 January 2021  &  Online.

The main aim of the Winter School is to involve PhDs and young researchers in the field of AM with an engineering perspective.

I have a new postdoc position  for the design, computational modeling and experimental testing of metallic architected materials using additive manufacturing in collaboration with a manufacturing company. The successful candidate will have (i) a Ph.D. in engineering, materials science or physics, (ii) experience in at least two of the following areas: finite elements, fracture and damage modeling, experimental characterization, and testing of large specimens. (iii) Excellent interpersonal skills and strong oral and written communication skills.

OPEN POSITION

POSTDOCTORAL RESEARCHER

Computational Diagnostics and Inverse Mechanics

A postdoctoral appointment is available in the Computational Diagnostics and Inverse Mechanics (CDIM) research group under the supervision of Dr. John C. Brigham at the University of Pittsburgh Department of Civil and Environmental Engineering. 

One PhD position is available in the Computational Cardiovascular Bioengineering Lab (C2BL) at the Department of Biomedical Engineering at Texas A&M University for fall 2021 entry.