Data processing: structural design – modeling – simulation – and em – Modeling by mathematical expression
Reexamination Certificate
2005-04-05
2005-04-05
Homere, Jean R. (Department: 2128)
Data processing: structural design, modeling, simulation, and em
Modeling by mathematical expression
C703S001000, C345S423000, C345S474000
Reexamination Certificate
active
06876956
ABSTRACT:
Thin-shell finite-element analysis based on the use of subdivision surfaces: (1) describing the geometry of a shell in its undeformed configuration, and (2) generating smooth interpolated displacement fields possessing bounded energy. No nodal rotations are used in the interpolation. The interpolation scheme induced by subdivision is nonlocal, i.e., the displacement field over one element depends on the nodal displacements of the element nodes and all nodes of immediately neighboring elements. However, the use of subdivision surfaces ensures that all local displacement fields thus constructed combine conformingly to define one single limit surface.
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Cirak Fehmi
Ortiz Michael
Schroeder Peter
California Institute of Technology
Day Herng-der
Fish & Richardson P.C.
Homere Jean R.
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