Hello,

 I am looking for a job in applied mechanics in California, to start in or around July 2008.  I am trained (Ph.D.) in applied mathematics, modeling, and computational mechanics (of biological tissues), general continuum mechanics, constitutive modeling, and optimal control.  Greatly interested in dynamic modeling and analysis, stress / thermal analysis, and modeling problems related to design, e.g. medical devices.  Will be glad to be more involved in design.

 My CV, including my contact information, can be found at  http://math.uci.edu/~sadovsky/docs/cv-02-2008.pdf

 If seeking such candidates, please email me.  Thanks!

Hello,

 I am trying to solve a dynamic problem in nonlinear elasticity using FEM (the FreeFem++ software). The constitutive law is compressible neo-Hookean, with viscosity terms and a time-dependent body force. The computation successfully completes even for relatively fine meshes.  However, as soon as I refine the mesh beyond a certain (large) number of boundary nodes, the program reports the "triangle reversed" error at a very early stage.  And, if I change the linear solver from GMRES to LU, the computation terminates because of a poorly conditioned matrix.  Can anyone suggest a way of testing whether this indicates a numerical problem, or whether the model itself is flawed?

Thanks, A.S.