首页> 美国政府科技报告 >Application of Fracture Proof Design Methods Using Tearing Instability Theory to Nuclear Piping Postulating Circumferential through Wall Cracks.
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Application of Fracture Proof Design Methods Using Tearing Instability Theory to Nuclear Piping Postulating Circumferential through Wall Cracks.

机译:基于撕裂不稳定理论的抗裂设计方法在核心管壁周向裂缝中的应用。

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摘要

The 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 herein 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.

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