numerical integration

Paper Accepted for Publication in International Journal for Numerical Methods in Engineering

Linear smoothed polygonal and polyhedral finite elements

A. Francis, A. Ortiz-Bernardin, SPA. Bordas, S. Natarajan

ABSTRACT

Hi everybody,

 I am a beginner in doing research :-) and my topic is about "Micro Indentation Analysis using Continuum Dislocation Theory". I am applying high-order finite element method for this nonlinear problem.

 My plan is first writing a subroutine for the element. However, when I intend to compute the internal force  by using Gauss Integration, I see a problem with the integrand function of some components of the internal force vector. This integrand is discontious function. It is therefore, I cannot get a good approximation with the standard Gauss integration.