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Numerical assessment of disorder effects in metal foam core sandwich beams based on a local homogenization procedure
Author(s) -
Beckmann Carla,
Hohe Jörg
Publication year - 2012
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.201210196
Subject(s) - homogenization (climate) , metal foam , computation , materials science , sandwich structured composite , composite material , core (optical fiber) , structural engineering , mechanics , mathematics , physics , engineering , porosity , algorithm , biodiversity , ecology , biology
The present study is concerned with a numerical procedure for prediction of uncertainty effects in sandwich structures with disordered cores. The approach is based on probability distributions of different material properties and their spatial correlation which are the results of the multiple homogenization analysis of testing volume elements. In order to illustrate the essential difference in the results of material uncertainties between computations using random fields and a deterministic approach both methods are applied to a single edge clamped sandwich beam with a metal foam core which is loaded by a force at the free end. (© 2012 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)