I have used XFEM in Abaqus for static analysis. I use traction-separation cohesive behavior with XFEM.
I want to use XFEM in implicit dynamic analysis. I am using Abaqus version 6.12. As far as I know xfem was allowed only with static analysis in earlier Abaqus versions (6.9). I read that the newer versions have implicit dynamic analysis compatiblity with XFEM.
However, when I define an implicit dynamic step, I do not see XFEM Crack Growth option in the Interactions section when I choose 'Initial Step'. Only if I select a static step, the xfem crack growth shows up in the options for initial step.
I am looking to recruit a new PhD student in the area of computational modeling of soft active materials. The position will begin as early as January 2014, or alternatively in September 2014. Requirements for this position including the ability to program in C++, knowledge of nonlinear finite element methods and continuum mechanics, and a good background in solid mechanics. If interested, please contact me at parkhs(at)bu.edu, with a copy of a CV and a description of your previous research experience.
Related research that I have done on this topic can be found at this weblink:
EVALUATION OF S.I.F FOR CRACK EMANATING AT 45 Deg ORIENTATION FROM A HOLE IN PRESSURISED CYLINDER USING FEASubmitted by anand_mtech on Mon, 2013-09-16 16:27.
Journal of Applied Mechanics just published the 2011 Drucker Medal Paper: Localized Compaction in Porous Sandstones, authored by Profesor John Rudnicki from Northwestern University.
Professor John Rudnicki received the ASME Drucker Medal in 2011.
my name is mohamad. I am phd student in mechanical engineering. I want to use of total lagrangian formulation for analysis of a cantilever. my difficulty is on implementation of newton raphson method and incrementing load. my code does not converge. can you help me. if there is a simple code I was wondering if someone aware me.
thanks in advance.
Strain localization in a nanocrystalline metal: Atomic mechanisms and the effect of testing conditionsSubmitted by Tim Rupert on Fri, 2013-09-13 19:09.
We introduce a geometric framework to calculate the residual stress fields and deformations of nonlinear solids with inclusions and eigenstrains. Inclusions are regions in a body with different reference configurations from the body itself and can be described by distributed eigenstrains. Geometrically, the eigenstrains define a Riemannian 3-manifold in which the body is stress-free by construction. The problem of residual stress calculation is then reduced to finding a mapping from the Riemannian material manifold to the ambient Euclidean space. Using this construction, we find the residual stress fields of three model systems with spherical and cylindrical symmetries in both incompressible and compressible isotropic elastic solids.
Recently, I have decided research about membrane vibration. Any one could introduce some basic materials about membrane vibration?Thanks!
Transportation Geotechnics, a new journal providing a valuable resource for pavement and railroad track engineers, engineers and professionals to publish their work and keep up to date with the latest advances in this field.
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
A book review by Prof. George Weng (Rutgers University) is published in the Journal of Applied Mechanics, November, 2013. The book, Micromechanics of Composite Materials, was authored by Prof. George Dvorak and published by Springer, 2013.
I am exploring the area of homogenization applications in structural
In the literature which I have studied so far, I found papers which
developed these techniques using the structural properties of the periodic
I am interested in estimation of approximate homogeneous properties from the
experimental data of periodic/random structures.
Can someone comment on the feasibility of this study and point me to relevant
literature if available.
I have been working on solving contact problems relating to fibrillar adhesives over the past 3 yrs of my PhD work. In the past, I used Comsol FEM to model contact interactions by implementing the Dugdale-Barenblatt traction separation law at the contact interface.
In my recent work, I will like to carry out situations that involve materials that are not originaly in contact, but adheres upon contact. To do this I have switched to Abaqus because of its good reputation in adhesive contact modeling. With the help of online user manuals and examples, I have been able to successfully simulate various contact problems with the exception of adhesive contacts.
can anyone tell me how to perform high strain rate simulation in abaqus.
Evaluation of low-velocity impact response of honeycomb sandwich structures using factorial-based design of experimentsSubmitted by prathyush963 on Sat, 2013-09-07 23:32.
Modeling of fiber pull-out in continuous fiber reinforced ceramic composites using fem and artificial neural networksSubmitted by prathyush963 on Sat, 2013-09-07 23:21.
hi everyone,can anybody tell me how to reconstruct a microstructure into 3D for analysing in abacus.
Dear colleagues and friends,
On behalf of the editorial board, I would like to introduce our new Journal, Soft Robotics (SoRo) to the mechanics community. SoRo is an innovative peer-reviewed journal dedicated to the science and engineering of soft materials in mobile machines. The Journal breaks new ground as the first to answer the urgent need for research on robotic technology that can safely interact with living systems and function in complex natural or human-built environments.
In 1860 the mathematician and geometer Reye proposed a simple and elegant theory for explaining the consumption of a solid body when it slides with friction on a rough surface . Reye’s model became very popular in Europe (in Italy was promulgated by Panetti ), and it is still taught in university courses of applied mechanics. But, strangely enough, this theory has been totally ignored in English and American literature. Why? A paper from 2001 by Villaggio is interesting to read today.