An Integrated System for Shells with Discontinuities--geometric Modelling and Finite Element Analysis |
Common terms and phrases
algorithm analysis program approximation assigned B-spline BDS element coarse mesh computer graphics coordinate system core cube curvature curve(s cylinder data types database degrees of freedom displacement domes efficient elastic element formulation element library equations example FACS finite element analysis finite element mesh geometric groin handling hidden hidden surface removal implementation IN-OUT input interactive meshing intersecting surfaces intersection curve intersection points junction linear linear elastic load lofting lookup tables material discontinuities mathematical memory computer mesh generation schemes methods midside nodes multiple surface needed nonlinear number of degrees number of nodes page faulting parametric surfaces PERSP ORTHO RESTORE polygons position primitive procedure Routine Library separability test shell discontinuities SHELL PREPROCESSOR Problem shell theory shown in Fig single surfaces SNAP HELP Figure solution spline spline-lofted surfaces stiffener structural subdivision Subsection surface removal techniques thickness three-dimensional transfinite mapping transformation translational vector virtual memory WUSH WUSH element