I am reading the Weirzbicki's paper titled "Numerical Prediction of fracture in the Taylor test". I do not understand the terms stress triaxility and Lode angle parameter clearly. What does the term "negative stress triaxiality at -1/3" stand for? Kindly explain me these two aspects clearly and also provide some references for reading.
Thanks and Regards,
Siva Prasad A V S.
The Computational Mechanics group at The University of Iowa, led by Professor S. Rahman,
is looking for new Ph.D. students, who are capable of and interested in performing
high-quality research on reliability-based design optimization. The research, supported
by NSF and others, entails developing new theory and efficient algorithms for stochastic
computing and design optimization. A solid background in mechanics and elementary
numerical analysis is a must; some exposure to uncertainty and probabilistic methods is
desirable.
Dear Friends.
I am trying to model a moving truck on a bridge . Initially I want to try doing a static analysis. For this , I have modeled tyres as analytically rigid cylinders and, placing them on the solid slab element . After this i have applied a velocity boundary condition to the rigid cylinder , and also a load ( Pointing in the direction of gravity) to the reference point .
The new feature of XFEM was added to the ABAQUS6.9-2. Does anybody
know how can I extract the current configuration of crack in terms of distance
values from nodes? I know that PHILSM provides information on this issue, but
it is only about crack plane. I want nodal distance from crack front
Hi,
I'm an Engineer and a Ph.D. student in Applied Maths, working in the field of Nonlinear Finite Elements for Elasticity. I often think about my future career since, by now, I have a strong experience with coding FE in C++/Matlab/Mathematica, but no clue whatsoever about commercial black-box softwares for FEA. I'm worried about this, since most of the job vacancies from the industry (I'm not interested in pursuing the Academic career) seem to require only experience with a specific software and application, and not to directly code FE.
I've been programming geometric non-linear analysis of beams.I'm done with load control approch,displacement control approach (whih can track snap through NOT snap back)and generalised displacement control (which can track both snapm through and snap back).
Welcome to February 2010 Journal Club! This month, I look forward to a lively discussion on the mechanics of structured and patterned interfaces in which geometry is used to tailor adhesion. Much of the work in this area has been inspired by a variety of animals and insects that have feet covered with small structures (often hierarchical and sub-micrometer in size at the end) that allow them to strongly adhere to a broad range of surfaces. The best known example is the Tokay Gecko (Gekko gecko), which can achieve an adhesion force much greater than its body weight
