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Title: Method and apparatus for connecting finite element meshes and performing simulations therewith

Patent ·
OSTI ID:1174311
; ;

The present invention provides a method of connecting dissimilar finite element meshes. A first mesh, designated the master mesh, and a second mesh, designated the slave mesh, each have interface surfaces proximal the other. Each interface surface has a corresponding interface mesh comprising a plurality of interface nodes. Each slave interface node is assigned new coordinates locating the interface node on the interface surface of the master mesh. The slave interface surface is further redefined to be the projection of the slave interface mesh onto the master interface surface.

Research Organization:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
6,560,570
Application Number:
09/444,526
OSTI ID:
1174311
Country of Publication:
United States
Language:
English

References (8)

The DyMesh Method for Three-Dimensional Multi-Vehicle Collision Simulation conference March 1999
Using a reduced number of Lagrange multipliers for assembling parallel incomplete field finite element approximations journal June 1992
A general-purpose contact detection algorithm for nonlinear structural analysis codes report May 1993
SEACAS Theory Manuals: Part III. Finite Element Analysis in Nonlinear Solid Mechanics report March 1999
A uniform strain hexahedron and quadrilateral with orthogonal hourglass control journal May 1981
Finite-element method for elastic wave propagation journal July 1990
PRONTO3D users' instructions: A transient dynamic code for nonlinear structural analysis report June 1998
A coupled analysis method for structures with independently modelled finite element subdomains journal November 1995

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Related Subjects

97 MATHEMATICS AND COMPUTING