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16 September 1993 Ray tracing from finite element results
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Abstract
A finite element program such as NASTRAN provides displacements and rotations at grid points only. When ray tracing on a deformed surface, it is necessary to accurately determine the displacement and slope at all ray intersections which seldom occur at grid points. This paper describes a general purpose post-processing program to accurately interpolate over a model, using element shape functions. The user may specify a choice of linear interpolation or cubic interpolation for plate and shell models.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Victor L. Genberg "Ray tracing from finite element results", Proc. SPIE 1998, Optomechanical Design, (16 September 1993); https://doi.org/10.1117/12.156632
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