Blog posts
Riemann-Cartan Geometry of Nonlinear Dislocation Mechanics
We present a geometric theory of nonlinear solids with distributed dislocations. In this theory the material manifold - where the body is stress free - is a Weitzenbock manifold, i.e. a manifold with a flat affine connection with torsion but vanishing non-metricity. Torsion of the material manifold is identified with the dislocation density tensor of nonlinear dislocation mechanics. Using Cartan's moving frames we construct the material manifold for several examples of bodies with distributed dislocations. We also present non-trivial examples of zero-stress dislocation distributions.
2012 BENJAMIN FRANKLIN MEDAL IN MECHANICAL ENGINEERING
2012 BENJAMIN FRANKLIN MEDAL IN MECHANICAL ENGINEERING
Zvi Hashin, Ph.D.
Tel Aviv University
Tel Aviv, Israel
Citation: For groundbreaking contributions to the accurate analysis of composite materials, which have enabled practical engineering designs of lightweight composite structures, commonly used today in aerospace, marine, automotive, and civil infrastructure.
Postdoctoral postion in Computational Crystal Plasticity at RPI
There is an immediate opening for a postdoctoral research position in the Advanced Computational Research Lab at RPI, Troy NY to work on Crystal Plasticity Finite Element Methods. Currently we are working on interesting advances in the areas of radiation damage and high strain rate loading conditions. Encouraged to apply are creative, self-motivated individuals with a sound baclkground in computational mechanics, CPFEM and materials science. RPI is home to the CCNI, one of the most powerful university-based supercomputational research facilities in the world.
analysis of laminated composite plate
i am doing the project on laminated composite plate.
i want to know which software is most suitable software used for analysing the laminated composite plate and also its version.
so kindly give the answer for my question.to my email-id vvivek1236 [at] gmail.com
Forced Vibration of Prismatic Beams
Attached is a computer program, written in Scilab and easily convertible to Matlab, that computes and dsiplays vibrations of prismatic beams forced by a sinusoidal point force. One can impose a variety of boundary conditions, including ones with end masses, springs and dampers. I show several examples. This might be a useful pedagogical item to play around with.
I have similar programs and write-ups for free vibrations of Euler Bernoulli beams and Timshenko beams with variable properties. If any would be interested I would willing to post them too.
Cohesive Zone Modeling with Ansys multiphysic
Dear All !
Does anyone know how to creat Cohesive Zone in Ansys Multiphysics ? i am studying that but i havent created successfully, pls guide me step by step
I also make one contact in Ansys but, how to make it as Cohesive Zone ? i read in help, it guided me to use command "TB and TBDATA". But the problem is i dont know when and where to use these commads. If you know pls ponit me !
Thank so much !