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Conjugate gradient based projection - A new explicit methodology for frictional contactWith special attention towards the applicability to parallel computation or vectorization, a new and effective explicit approach for linear complementary formulations involving a conjugate gradient based projection methodology is proposed in this study for contact problems with Coulomb friction. The overall objectives are focussed towards providing an explicit methodology of computation for the complete contact problem with friction. In this regard, the primary idea for solving the linear complementary formulations stems from an established search direction which is projected to a feasible region determined by the non-negative constraint condition; this direction is then applied to the Fletcher-Reeves conjugate gradient method resulting in a powerful explicit methodology which possesses high accuracy, excellent convergence characteristics, fast computational speed and is relatively simple to implement for contact problems involving Coulomb friction.
Document ID
19930053448
Document Type
Conference Paper
Authors
Tamma, Kumar K. (NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Li, Maocheng (Minnesota Univ. Minneapolis, United States)
Sha, Desong (Minnesota Univ. Minneapolis; Dalian Univ. of Technology, China)
Date Acquired
August 16, 2013
Publication Date
April 1, 1993
Subject Category
MECHANICAL ENGINEERING
Report/Patent Number
AIAA PAPER 93-1612
Meeting Information
AIAA, ASME, ASCE, AHS, and ASC, Structures, Structural Dynamics and Materials Conference, 34th and AIAA and ASME, Adaptive Structures Forum(La Jolla, CA)
Distribution Limits
Public
Copyright
Other