Ainsworth, M. (2001) Essential boundary conditions and multi-point constraints in finite element analysis. Computer Methods in Applied Mechanics and Engineering, 190 (48). pp. 6323-6339.Full text not available in this repository. (Request a copy from the Strathclyde author)
The application of boundary conditions and other constraints to the stiffness matrix and load vector is an integral part of any finite element code. This process is usually trivial but can present difficulties to the point where some codes disallow certain combinations of commonly occurring boundary conditions. A general approach to this problem is presented and applied to representative examples. Necessary and sufficient conditions are obtained under which constraints can be applied sequentially. Bounds are obtained for the condition number of the reduced system showing it is essentially the same as for the original problem.
|Keywords:||finite element analysis, multi-point constraints, Mathematics, Physics and Astronomy(all), Mechanics of Materials, Mechanical Engineering, Computational Mechanics, Computer Science Applications|
|Subjects:||Science > Mathematics|
|Department:||Faculty of Science > Mathematics and Statistics|
|Depositing user:||Miss Darcy Spiller|
|Date Deposited:||25 Oct 2006|
|Last modified:||03 Jun 2016 02:03|