Dr. Liying Jiang (http://www.eng.uwo.ca/mechanical/faculty/jiang_l/index.html) at the University of Western Ontario is recruiting postdocs and graduate students, at both MESc and PhD levels. Priority will be given to students with Solid Mechanics background. Please send your CV with your transcripts to her by email: lyjiang [at] eng.uwo.ca
Through strain-induced morphological instability, protruding patterns of roughly commensurate nanostructures are self-assembled on the surface of spherical core/shell systems. A three-dimensional (3D) phase field model is established for a closed substrate. We investigate both numerically and analytically the kinetics of the morphological evolution, from grooves to separated islands, which are sensitive to substrate curvature, misfit strain, and modulus ratio between the core and shell.
Organizers invite to attend the summer school
Mechanics for the green economy: Modeling and High Performance Computing in multi-scale and multi-physics processes.
Brescia and Trento, Italy, 19-25 July 2017.
Deadlines:
Fellowship deadline is Sunday, May 7. Registration deadline July 1, 2017.
Lecturers:
Prof. W. Bangerth, Colorado State University, USA
Prof. D. Bigoni, Università di Trento, Italy
Our Group of High Performance Materials in Enviormental & Civil Engineering Department at Michigan State University has an openings for PhD positions to work on Multiscale Modeling of Soft Materials starting Fall 2017.
Mechanics fundamentally governs the way cells and tissues adopt their functional shapes, the way they resist stresses, and the way they move, individually or collectively. In turn, mechanical forces critically influence cell behavior. Over the last decade, the field of mechanobiology has emerged, emphasizing the tight interplay between mechanics and biological function.
In our just published paper, we identify two ways to extract the energy (or power) flowing into a crack tip during propagation based on the power balance of areas enclosed by a stationary contour and a comoving contour. It is very interesting to find a contradiction that two corresponding energy release rates (ERRs), a surface-forming ERR and a local ERR, are different when stress singularity exists at a crack tip. Besides a rigorous mathematical interpretation, we deduce that the stress singularity leads to an accompanying kinetic energy at the crack tip.
Tropocollagen types I and III were simultaneously fibrilized in vitro, and the differences between the geometric and mechanical properties of the heterotypic fibrils with different mixing ratios of tropocollagen III to I were investigated. Transmission electron microscopy was used to confirm the simultaneous presence of both tropocollagen types within the heterotypic fibrils. The incorporation of collagen III in I caused the fibrils to be thinner with a shorter D-banding than pure collagen I.
