Capturing expert knowledge of mesh refinement in numerical methods of impact analysis by means of genetic programming |
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Authors: | Daniel Howard Adrian Brezulianu |
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Affiliation: | (1) Howard Science Limited, 24 Sunrise, Malvern, WR14 2NJ, UK;(2) Faculty of Electronics, Telecommunications and Information Technology, Technical University of Iasi, Iasi, Romania |
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Abstract: | The mesh refinement decisions of an experienced user of high-velocity impact numerical approximation finite differences computations
are discovered as a set of comprehensible rules by means of Genetic Programming. These rules that could automatically trigger
adaptive mesh refinement to mimic the expert user, detect mesh cells that require refinement by evolving a formula involving
cell quantities such as material densities. Various cell variable combinations are investigated in order to identify the optimal
ones for indicating mesh refinement. A high-velocity impact phenomena example of a tungsten ball that strikes a steel plate
illustrates this methodology. |
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Keywords: | |
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