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Fracture analysis of cladded components considering residual stresses
Author(s) -
Hohe Jörg,
Brand Marcus,
Siegele Dieter
Publication year - 2008
Publication title -
pamm
Language(s) - English
Resource type - Journals
ISSN - 1617-7061
DOI - 10.1002/pamm.200810209
Subject(s) - residual stress , cladding (metalworking) , materials science , welding , base metal , brittleness , composite material , brittle fracture , fracture (geology) , metallurgy , structural engineering , engineering
The present study is concerned with an experimental and numerical investigation of the behavior of sub–clad and surface cracks in cladded components considering the residual stress field due to the welding and heat treatment processes. For this purpose, two large–scale tests on cladded cracked specimens have been performed and analyzed numerically. It is observed that the fracture process is initiated in the heat affected zone of the base metal underneath the cladding whereas the cladding remains intact even in case of a brittle crack extension and arrest in the base material. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)