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
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
Macroscopic
cracks do not appear as a result of an ideal separation of two adjacent atomic
layers. Just the opposite, cracks appear as a result of the development of
multiple micro-cracks triggered by the massive breakage of atomic bonds. The microcracking
and the bond breakage are not confined to two neighbor atomic planes: the
process involves thousands atomic planes within the representative characteristic
volume of size h. This size defines the width (not the lenth) of the damage
localization zone and it can be called the crack thickness. The knowledge of
Our paper titled "Lattice modeling of chloride diffusion in sound and cracked concrete" has been accepted for publication by Cement and Concrete Composites journal. It deals with numerical modeling of chloride transport coupled with fracture. Registered subscribers can download the paper at http://www.sciencedirect.com/science/article/pii/S0958946513000899 .
Can someone answer me if Gurson-Tvergaard-Needleman void growth model is not suitable for flyer-plate impact simulations? I have come across some papers who have derived void growth equations to simulate fracture in ductile mateials like OFHC copper etc., subject to plate impact (uniaxial strain high strian rate loading). I have attached 3 of them. But none of them have used Gurson's yield function. I did not find any explanation if GTN model has any drawbacks in simulating spallation phenomena found in plate impact simulations.
The 6th International PhD Student Workshop on Durability of Reinforced
Concrete will be held in Delft, The Netherlands, during July 4 and 5,
2013, hosted by TUDelft. After a series of successful workshops, most
recently in Espoo (2012), Madrid (2010) and Guimarães (2009), IPSW2013
will be held under the auspices of RILEM EAC (Educational Activities
Committee), aiming to bring together young researchers in the field of
durability of concrete.
The fatigue behavior of Ag films on polyethyleneterephthalate substrates was studied using electrical resistance measurements.
Scanning electron microscopy images showed two types of failure: typical fatigue failure with extrusion–intrusion pairs, and ductile
failure with local necking. Once through-thickness cracks are formed in the metal layer, cracks propagate and the resistance increases abruptly for both failure modes. The effect of adhesion on fatigue life is discussed in terms of concurrent delamination, crack initiation and propagation.
We are organizing a symposium titled "Fundamentals of Fracture" at the 2013 Spring Meeting of the German Physical Society, taking place in Regensburg, Germany.
The aim of this international symposium is to bring together specialists from the fields of solid state physics, materials science, continuum mechanics, statistical physics and mathematics to discuss the latest scientific developments related to fundamental mechanisms and physics of fracture.
Supervision: Dr JP Latham, Dr Jiansheng Xiang Industry Contacts:
Principal Investigator - Dr Michele Marigo
Co-investigators - Dr Mikael Carlsson, Prof Hugh Stitt
Applications are invited for a PhD studentship to join AMCG (Applied Modelling and Computational Group) in the Department of Earth Science & Engineering.
Please find enclosed our paper which is published on Journal of Multiscale Modelling
Vol. 3, No. 4 (2011) 1–42 which gives an overview of state of the art multiscale techniques for material modeling.
The paper discusses the following topics: homogenization, Representative volume element, computational homogenization (Fe2 methods) for both both bulk materials and strong discontinuities.
I hope the paper is useful for beginners to the field.
ME/PhD Positions open: Fracture Simulation for Visual Effects
High speed simulations of the fracture of wood, glass, concrete, brick walls, and many other materials are used every day in the visual
effects industry. The project team will develop the next generation of fracture effects technology, bringing visual effects fracturing to the next level through novel computational methods in conjunction with realistic material models for deformation and fracture.
Today our colleague Zhiwei Qian defended his PhD thesis titled: Multiscale modeling of fracture processes in cementitious material. We would like to congratulate Dr Qian on achieving this. The full thesis is available for download at: http://repository.tudelft.nl/view/ir/uuid:734b276c-283a-4f7a-8db2-a18445...
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