费英琼, 董亚民, 黄克智. 基于延性撕裂的“PD6493高级评定方法及EPRI方洁”的优化评定和应用对比研究[J]. 工程力学, 1994, 11(3): 18-27.
引用本文: 费英琼, 董亚民, 黄克智. 基于延性撕裂的“PD6493高级评定方法及EPRI方洁”的优化评定和应用对比研究[J]. 工程力学, 1994, 11(3): 18-27.
Fei Yingqun, Dong Yamin, Huang Kezhi. THE OPTIMIZATION ASSESSMENT AND APPLICATION FOR "PD6493 ADVANCED METHOD AND EPRI ENGINEERING METHOD" BASED ON DUCTILE FRACTURE[J]. Engineering Mechanics, 1994, 11(3): 18-27.
Citation: Fei Yingqun, Dong Yamin, Huang Kezhi. THE OPTIMIZATION ASSESSMENT AND APPLICATION FOR "PD6493 ADVANCED METHOD AND EPRI ENGINEERING METHOD" BASED ON DUCTILE FRACTURE[J]. Engineering Mechanics, 1994, 11(3): 18-27.

基于延性撕裂的“PD6493高级评定方法及EPRI方洁”的优化评定和应用对比研究

THE OPTIMIZATION ASSESSMENT AND APPLICATION FOR "PD6493 ADVANCED METHOD AND EPRI ENGINEERING METHOD" BASED ON DUCTILE FRACTURE

  • 摘要: 本文从工程应用角度重点研究了考虑延性撕裂的英国BSI PD6493高级评定方法及美国EPRI工程方法。作者所建立的优化评定方法,分析简单,概念清晰,克服了传统图解方法的繁琐和不确切。对比表明:修订的PD6493高级评定法(1991)与EPRI工程方法具有相似的精度水平。因而,利用两种延性撕裂评定方法所获得的结果,都是可以信赖的。

     

    Abstract: The authors investigated systematically the BSI PD6493 advanced assessment method and EPRI engineering method based on ductile tearing.By the notion of maintainning equilibrium between driven and resistance forces under stable crack growth, established an optimization method for failure assessment.It possesses the characteristics of simplicity and clarification. Therefore, it eliminates the complexity and undeterminacy of various assessment diagram methods.The revised PD6493 advanced assessment method (1991) and EPRI engineering method possess similar precision probably, then their assessment results by ductile tearing may be trusted in the full senses.

     

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