Further Refinement and Applications of the Mixed Computational Algorithm for Plane Elastic Contact Problems.
Abstract
The mixed finite element scheme developed earlier has been further studied in order to improve the model characteristics and operation as well as to explore further applications with regards to mechanical joints. One of the important modifications that has been implemented in the present study is the utilization of a dynamic as well as a static coefficient of fraction for the evaluation of contacting surface behavior instead of a single friction coefficient used in the previous study. This has improved the model behavior and involved a substantial reorganization of program methodology. Other refinements include the incorporation of a modified solution technique that allows the solution of the indefinite stiffness equation system which if formed in the first iteration of the first load step, and the usage of a finer mesh. The new solution technique also avoids the halt of execution of the program whenever small elements are introduced in the leading diagonal due to contact loss.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1987
- Accession Number
- ADA188308
Entities
People
- E. Yogeswaren
- Junuthula N. Reddy
Organizations
- Virginia Tech