The Mechanics of functional materials Division is offering a position for a Doctoral candiate starting as soon as possible. The position is scheduled for three years.
Supervisor: PN Watton, Department of Computer Science, University of Sheffield.
Co-supervisors: Prof Ray Ogden, School of Mathematics and Statistics & Dr Huabing Yin, Bioengineering, University of Glasgow
We are seeking applications from motivated mathematics, science or engineering graduates with strong mathematical/computational modelling skills interested in studying for a Ph.D. in an exciting interdisciplinary environment.
Zheng Jia, Teng Li, Intrinsic stress mitigation via elastic softening during two-step electrochemical lithiation of amorphous silicon, Journal of the Mechanics and Physics of Solids, 91, 278–290, (2016) (DOI:10.1016/j.jmps.2016.03.014)
Predicting the rate at which dislocations overcome obstacles is key to understanding the microscopic features that govern the plastic flow of modern alloys. In this spirit, the current manuscript examines the rate at which an edge dislocation overcomes an obstacle in aluminum. Predictions were made using different popular variants of Harmonic Transition State Theory (HTST) and compared to those of direct Molecular Dynamics (MD) simulations. The HTST predictions were found to be grossly inaccurate due to the large entropy barrier associated with the dislocation–obstacle interaction.
The 2016 winner of the Robert J. Melosh Medal is Maruti Kumar Munuduru, with the paper “Structure-Preserving Finite Element Formulations for Advective-Diffusive-Reactive Systems.” Maruti earned a Ph.D. Degree from the University of Houston, and is currently a post-doctoral appointee at Los Alamos National Laboratory.
The other five finalists in the competition were (in alphabetical order):
Recent Progress in Curvilinear Electronics and Mechanics
Jianliang Xiao
Department of Mechanical Engineering, University of Colorado Boulder
1. Introduction
Discrete dislocation dynamics simulations were performed to investigate the dislocation microstructure evolution and cyclic hardening during the early stages of fatigue loading in nickel single crystals. The effects of the crystal size and initial dislocation densities on both the mechanical response and the evolution of dislocation microstructure were quantified. Crystals having an initial dislocation density of 1012 m−2 and diameter less than do not show any dislocation density multiplication or cyclic hardening.
We have PhD student positions available who are interested in soft tissue biomechanics of the brain. Work will involve developing sophysticated, yet efficient computational models of the human brain to study the mechanisms of brain injury. This work is supported by NIH grants.
In addition, we have openings for visiting students or visiting scholars who have their own funding to stay in the lab.
Interested applicants please contact: Songbai.Ji [at] dartmouth.edu
For visiting positions, please clarify your funding sources and the eligibility to work in the lab.
Akanksha Garg, Craig Maloney
(accepted mannuscript in Journal of Mechanics and Physics of Solids)
These fragments of notes are intended for a course on fracture mechanics, but I have always run out of time, and have never managed to go over them in class. Some of the ideas are mentioned in various parts of the class. I have also listed refeences and review articles.
