Reduction of Numerical Sensitivities in Crash Simulations on HPC-Computers (HPC-10)

Oliver Mangold (), Raphael Prohl (), Anton Tkachuk () and Vladimir Trickov ()
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Oliver Mangold: Universität Stuttgart, High Performance Computing Center Stuttgart
Raphael Prohl: Steinbeis Center of Innovation Simulation in Technology
Anton Tkachuk: Universität Stuttgart, Institute of Structural Mechanics
Vladimir Trickov: Universität Stuttgart, Automotive Simulation Center Stuttgart e. V.

A chapter in High Performance Computing in Science and Engineering '11, 2012, pp 631-636 from Springer

Abstract: Abstract For practical application in engineering numerical simulations are required to be reliable and reproducible. Unfortunately crash simulations are highly complex and nonlinear and small changes in the initial state can produce big changes in the results. This is caused partially by physical instabilities and partially by numerical instabilities. Aim of the project is to identify the numerical sensitivities in crash simulations and suggest methods to reduce the scatter of the results.

Keywords: Lyapunov Exponent; High Performance Computing; Physical Instability; Crash Simulation; Critical Time Step (search for similar items in EconPapers)
Date: 2012
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-642-23869-7_46

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DOI: 10.1007/978-3-642-23869-7_46

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