This is a corrected, revised and expanded edition. I added new Chapter 11 on modeling fracture in soft materials. Arguably, fracture is the central and unsolved problem in solid mechanics. I describe a new perspective on this problem based on the material sink approach, in which momenta and mass balance are coupled.
Applications are invited for two Research Assistant (PhD candidates) or Research Associates (post-docs) positions at the University of Oviedo, in close collaboration with Imperial College London. Research Assistants will be appointed for 2 years while Research Associates will be appointed initially for one year, with the possibility of extending one more year. Conditional upon satisfactory progress, the researchers will have the opportunity to divide their time between the University of Oviedo and Imperial College upon their convenience.
Posted on behalf of Dr. Youngsoo Choi, Research Scientist, Computational Engineering Division, Lawrence Livermore National Laboratory
Dr. Youngsoo Choi is looking for a postdoc for his reduced order model (ROM) project, who can be either foreign national or US citizen.
The official announcement is at
AV Of Our Keynote Speaker @ Amme dubai 2020
We are honored to introduce Dr. Assem Moussa as a Keynote Speaker to AMME Dubai 2020 Assem A. Hamied Moussa earned Ph.D., 2015. Global Good Will Ambassador. Author of Cloud of Things Books 2016. President of Success legacy, SCR &, ASDF in Africa.
A few years ago, we observed Wallner Lines on the fracture surface of a brittle Bulk Metallic Glass and explained the process of formation of nanocorrugations on the fracture surface.
We published our research in Acta Materialia in the paper: 'Wallner lines, crack velocity and mechanisms of fracture in a brittle bulk metallic glass'.
I hope the experimental fracture mechanicians would particularly enjoy reading this paper and find it useful in their research.
A few years ago we published a paper in Acta Materialia elucidating the mechanism and length scales in the ductile fracture of bulk metallic glass through experiments and finite element simulations.
The link to the paper is here: 'On the mechanism and the length scales involved in the ductile fracture of a bulk metallic glass'.
I hope you enjoy reading the paper and find it useful in your research.
There is a shortage of literature on mode III fracture behaviour of bulk metallic glasses.
In our following research paper published in Acta Materialia, we report our experiments and three-dimensional elasto-plastic finite element simulations of tension-torsion loading on notched ductile bulk metallic glass bars.
It is found that fracture toughness of this BMG is lowest in mode II among all three fracture modes.
Bulk Metallic Glasses were found to exhibit an intermediate temperature minimum in ductility. Does it also lead to an intermediate temperature minimum in fracture toughness?
Porous Bulk Metallic Glasses have been found to be mechanically superior under compressive stress states.
Porous Bulk Metallic Glasses have been invented by researchers to mitigate catastrophic failure in monolithic Bulk Metallic Glasses which are susceptible to intense strain localization into shear bands.
