Application of fracture-proof design methods using tearing-instability theory to nuclear piping postulating circumferential through-wall cracks
- 1 September 1983
- report
- Published by Office of Scientific and Technical Information (OSTI)
Abstract
This report presents methods of applying tearing instability analysis to large circumferential through-wall cracks in piping to demonstrate cases of adequate ductility to avoid double ended break. The first part gives results of applying simplified rigid-plastic cracked section analysis to some typical piping systems and subsequently gives some additional refinements of this type of analysis. The second part presents full elastic-plastic cracked section analysis which demonstrates the adequacy of rigid-plastic analysis for most cases and provides the methodology where elastic-plastic analysis is required. The results combined with adequate treatment of material property data and other deformation limiting and load limiting aspects of as-built piping systems, provides a complete analysis of subject.Keywords
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