Dear iMechanicians,
Let me invite you the 3rd International Conference on Material and Component Performance under Variable Amplitude Loading (VAL 2015) taking place in Prague, Czech Republic in March 23-26, 2015. See the details on its website http://www.val-conf.org.
The conference will discuss among others these primary questions:
We simulate the fracture processes of ferroelectric polycrystals in
three dimensions using a phase-field model. In this model, the grain
boundaries, cracks and ferroelectric domain walls are represented in a
diffuse way by three phase-fields. We thereby avoid the difficulty of
tracking the interfaces in three dimensions. The resulting model can
capture complex interactions between the crack and the polycrystalline
and ferroelectric domain microstructures. The simulation results show
the effect of the microstructures on the fracture response of the
material. Crack deflection, crack bridging, crack branching and
ferroelastic domain switching are observed to act as the main fracture
toughening mechanisms in ferroelectric polycrystals. Our fully 3-D
Dear all,
I would like to bring to your attention the following minisymposium that is organized as part of the NCTAM 17 (Michigan State University, June 15-20, 2014)
http://www.usnctam2014.org/minisymposium/friction-adhesion-and-fracture…
Friction, Adhesion and Fracture: From microscale physics to macroscale response
The Faculty of Engineering Science and Technology (IVT) at the Norwegian University of Science and Technology (NTNU) announces one vacant PhD position in the field of Fracture of Ni-alloys.
7th International Conference on Fracture of Polymers, Composites and Adhesives - 14-18 September 2014, Eurotel Victoria, Les Diablerets, Switzerland
We are looking for both experimetal and analytical work, in order to give a balanced view of the subject areas:
- Polymers
- Application of fracture mechanics
- Adhesives
- Composites
For more information or to submit your abstract, go to www.esistc4conference.com
The 7th International Conference in the series will take place once again at Les Diablerets, in Switzerland on 14-18 September 2014.
It organised by the European Structural Integrity Society - Technical Committee 4 on Fracture Mechanics related to Polymers, Polymeric Composites and Adhesives. To submit your abtract, go to http://www.esistc4conference.com/submit-abstract.html
This is a recent article in Acta Materialia on the propagation of conducting cracks in ferroelectric ceramics
Title: Conducting crack propagation driven by electric fields in ferroelectric ceramics
Authors: Amir Abdollahi and Irene Arias, Universitat Politecnica de Catalunya (UPC), Barcelona
Abstract:
Postdoctoral Research Fellow position in hydro-fracturing (fracking) is
available immediately at Masdar Institute of Science and Technology in Abu
Dhabi in United Arab Emirates. Masdar Institute is established in collaboration
with Massachusetts Institute of Technology. The research project focuses on
using advanced computational fracture and damage mechanics for simulating
hydro-fracturing of rocks in hydrocarbon fields. The candidate is expected to
have a PhD in the field of geomechanics, or civil engineering with solid
knowledge of hydraulic fracture mechanics and excellent theoretical and
Dear everybody，
I have just studied Abaqus and would like to use Vumat to simulate the hot ductile
fracture criterion of Freudenthal which have the equation: D=integral(0-fracture strain)
of (Smises stress)*d(strain). The fracture will be appear when I reach 1 unit.
Could you please show me how to write algorithm adding temperature to calculate (D) and
out put (D) in Vumat.
thanks you so much
I am looking forward to hearing from you
hongfengtl
