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Title:The re-characterisation of complex defects
Authors:ID Bezenšek, Boštjan (Author)
ID Hancock, John. W. (Author)
Files:URL http://dx.doi.org/10.1016/S0013-7944(03)00155-3
 
Language:English
Work type:Unknown ()
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
Abstract:Defect assessment codes idealise complex defects as simple shapes which are amenable to analysis in a process known as re-characterisation. The present work examines the re-characterisation of complex defects which extend by fatigue, ductile tearing or cleavage. A family of representative defects were analysed numerically, while a related experimental programme investigated defect interaction and failure. Part I of the paper focuses on fatigue and ductile tearing. Part II examines cleavage. The numerical and experimental results are discussed within the context of the re-characterisation proceduresdescribed in BS 7910 (Guidance on methods for assessing the acceptability of flaws in metallic structures. London, UK: British Standard Institution; 1999 [Chapter 7] and R6/4 (Assessment of the integrity of structures containing defects. Gloucester: British Energy Generation Ltd.; 2001 [Revision 4, Chapters I and II.3]). The level of conservatism of the re-characterisation prpcedures for fatigue and ductile tearing are discussed. A possible non-conservatism of the re-characterisation for cleavage is discussed in Part II, within the framework of constraint based statistical fracture mechanics.
Keywords:fracture mechanics, structural elements, complex defects, recharacterisation, line-spring analysis, fatigue, ductile tearing, cracks, numerical analysis
Year of publishing:2004
PID:20.500.12556/DKUM-27496 New window
UDC:539.42:519.51/.64
ISSN on article:0013-7944
COBISS.SI-ID:8460822 New window
NUK URN:URN:SI:UM:DK:KT86IEP6
Publication date in DKUM:01.06.2012
Views:1118
Downloads:86
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:Misc.
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Record is a part of a journal

Title:Engineering fracture mechanics
Shortened title:Eng. fract. mech.
Publisher:Pergamon Press.
ISSN:0013-7944
COBISS.SI-ID:25396736 New window

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