Internship available in FEA of crack growth
Title: Structural FEA Intern
Employer: Schlumberger Technology Corporation
Location: Sugar Land, TX, USA
Starting Date: 01/01/2011
Research assistant and PhD position at PoliMi on corrosion-fatigue
Raiway axle failures have been the starting point for the studies on fatigue. However, recent accidents and papers (see [1] by Hoddinott) have shown that corrosion-fatigue plays a significant role.
At PoliMi we have recently investigated this topic finding interesting results by corrosion-fatigue tests on small-scale specimens and, recently, a validation of the model by full-scale corrosion-fatigue tests (see papers [2-3]).
Postdoc position available on atomistic simulations of water/graphene interface
A postdoc position is available next January at Research Center for Applied Sciences, Academia Sinica in Taiwan on the molecular simulation of the water/graphene interface.
For those who are interested, please contact Chun-Wei Pao (cwpao [at] gate.sinica.edu.tw) or Jer-Lai Kuo (jlkuo [at] pubs.iams.sinica.edu.tw).
Record of ANSYS - IOSO Robust Optimization for CFD Webinar
Dear Colleagues,
The official version of ANSYS - IOSO RDO for CFD Webinar record is available: http://www1.ansys.com/customer/publi...=yes&agenda=no
After the filling the form you can immediately start watching.
Speech of Acceptance of the 2010 Timoshenko Medal by Wolfgang G. Knauss
In the following the italicized portions were stricken from the oral presentation to better approximate the time length suggested. They are retained here primarily for the preservation of historical developments in mechanics.
Experimental Mechanics of History
International Journal of Applied Mechanics (IJAM) Vol. 3 No. 1
Forthcoming papers of International Journal of Applied Mechanics (IJAM) Vol.3 No.1:
How to determine crack length in XFEM analysis
Hi guys,
i am doing crack propagation analysis using XFEM. My model is working fine. i want to know how one can determine the length of the propagated crack against time increment. Is there any built in histroy out put variable with which one can calculate the length of the propagated crack using histroy output or is there any other way for example using pyton scripting. would be my pleasure to hear valuable comments from you guys.
Alex
Can microscopic coefficients always be derived from macroscopic coefficient (biot effective coefficient, skempton coefficient)?
Can microscopic coefficients always be derived from macroscopic coefficient?
To be more specific,
alpha: Biot-Willis coefficient, Skempton coefficient
These two parameters are derived from the macroscopic level which reflects the response of a porous material as a whole, without explicitly taking into account the individual contribution of its solid and fluid constituents.
Effect of External Normal and Parallel Electric Fields on 180^o Ferroelectric Domain Walls in PbTiO3
We impose uniform electric fields both parallel and normal to 180^o ferroelectric domain walls in PbTiO3 and obtain the equilibrium structures using the method of anharmonic lattice statics. In addition to Ti-centered and Pb-centered perfect domain walls, we also consider Ti-centered domain walls with oxygen vacancies. We observe that electric field can increase the thickness of the domain wall considerably. We also observe that increasing the magnitude of electric field we reach a critical electric field E^c; for E > E^c there is no local equilibrium configuration.