Data processing: structural design – modeling – simulation – and em – Structural design
Reexamination Certificate
2011-05-31
2011-05-31
Shah, Kamini S (Department: 2128)
Data processing: structural design, modeling, simulation, and em
Structural design
C703S002000, C703S006000, C703S007000, C703S008000, C703S010000, C703S011000
Reexamination Certificate
active
07953578
ABSTRACT:
Systems and methods of limiting contact penetration in numerical simulation of non-linear structure response using implicit finite element analysis are described. According to one aspect, a finite element analysis (FEA) model of a structure is defined as a number of nodes and elements based on geometry and material properties of the structure. A time-marching analysis of the FEA model is then performed. The time-marching analysis results contain a number of solutions of non-linear structure response at respective time steps. Solution at each time step requires at least one iteration to compute. Non-linear structure response is determined in the following manner: 1) determining a search direction; 2) calculating a contact penetration parameter in the search direction; and 3) finding a minimum energy imbalance location along the search direction as a solution which is further restricted by the CPP such that contact penetration of the structure is substantially limited.
REFERENCES:
patent: 6560570 (2003-05-01), Dohrmann et al.
patent: 6678642 (2004-01-01), Budge
patent: 6810370 (2004-10-01), Watts, III
patent: 7308387 (2007-12-01), Feng et al.
patent: 7363198 (2008-04-01), Balaniuk et al.
patent: 2002/0077795 (2002-06-01), Woods et al.
patent: 2002/0177983 (2002-11-01), Maker
patent: 2002/0183993 (2002-12-01), Hirata
patent: 2006/0004550 (2006-01-01), Coles et al.
Xu et al. “Parallel Contact Algorithms for Nonlinear Implicit Transient Analysis”, Computational Mechanics 34 (2004) 247-255.
Hirota et al. “An Implicit Finite Element Model for Elastic Solids in Contact”, Sep. 2001.
Kugener, Stephane. “Simulation of the Crimping Process by Implicit and Explicit Finite Element Methods”, AMP Journal of Technology vol. 4 Jun. 1995.
Un, Kerem. “A Penetration Based Finite Element Method for Hyperelastic Three-Dimensional Biphasic Tissues in Contact”, Apr. 2002.
Wriggers, P. “Finite Element Algorithms for Contact Problems”, Nov. 2000.
Roger Grimes
Zhu XinHai
Chu Roger H.
Livermore Software Technology Corporation
Patel Shambhavi
Shah Kamini S
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