Blog posts
Nanoscale self-healing mechanisms in shape memory ceramics
Shape memory ceramics, such as yttria-stabilized tetragonal zirconia (YSTZ), offer unique properties including ultra-high operating temperatures and high resistance to oxidation. However, they are susceptible to formation of defects during manufacturing and/or by mechanical deformation. To completely take advantage of their shape memory properties, it is necessary to fully understand the nano-structural evolution of defects under external stimuli. In this study, defect evolution behaviors in YSTZ nanopillars are investigated by atomistic simulations.
Competition between formation of Al2O3 and Cr2O3 in oxidation of Al0.3CoCrCuFeNi high entropy alloy: A first-principles study
We studied the oxidation behavior of face-centered cubic Al0.3CoCrCuFeNi high entropy alloy through first-principles calculations. Three surface orientations were chosen for oxidation, and all the possible combinations of atomic positions at these surfaces were considered. The adsorption energy of oxygen adhesion to the studied surfaces was the lowest for the sites with more neighboring Cr atoms, and the second most favorite site for oxygen adsorption had more neighboring Al atoms.
Postdoc position in atomistic simulations of grain boundaries in Mg alloys at UMich
A postdoctoral research associate opening with a primary focus on atomistic simulations of defects and mechanical behaviors of Mg and Mg alloys is available in Liang Qi’s group (http://cms.engin.umich.edu/) at University of Michigan, Ann Arbor. Qi’s group is involved in the PRedictive Integrated Structural Materials Science Center (PRISMS), a DOE-BES funded research center dedicated to integrated computational and experimental studies of structural alloys located at University of Michigan.
Preferential debonding during demolding of a sandwiched elastomeric layer
Link to our new paper outlining some strategies to steer interfacial debonding to a desired interface during a demolding process when the two interfaces in a 3-layer structure are equally weak. The article can be downloaded for free until July 5th. Would sincerely appreciate any feedback.
https://authors.elsevier.com/a/1Z3d04kE0IsZs
Abstract:
Postdoctoral Research Associate and Graduate Student Openings in Mechanobiology and Biomechanics at UPenn
Several postdoctoral and graduate student openings with primary focus on biomechanics is available immediately in the Shenoy Research Group at the University of Pennsylvania. We are looking for strongly motivated candidates to work on NIH supported projects on a) cell-matrix interactions in fibrosis and cancer and 2) mechanical mechanisms of traumatic brain injury.
PhD Position in manufacturing, characterisation and simulation of composite materials
The University of Edinburgh and Williams Advanced Engineering is looking for an enthusiastic PhD candidate to develop novel, lightweight, high-performance composite structures and materials for application within multiple industry sectors.
https://www.williamsf1.com/pages/careers/wae/industrydoctorateprogramme…
Phonons in chiral nanorods and nanotubes: a Cosserat rod based continuum approach
A Cosserat rod based continuum approach is presented to obtain phonon dispersion curves of flexural, torsional, longitudinal, shearing and radial breathing modes in chiral nanorods and nanotubes. Upon substituting the continuum wave form in the linearized dynamic equations of stretched and twisted Cosserat rods, we obtain analytical expression of a coefficient matrix (in terms of the rod's stiffnesses, induced axial force and twisting moment) whose eigenvalues and eigenvectors give us frequencies and mode shapes, respectively, for each of the above phonon modes.
PhD positions in Control Engineering are available at George Mason University
Applications are invited for PhD positions at the Algorithms in Medicine and Neuro-Technology Lab (AIMAN Lab) in the Department of Mechanical Engineering at George Mason University, Fairfax, VA. "Research" The AIMAN Lab pursues fundamental breakthroughs in biomedical cyber-physical systems.