期刊文献+

压力容器及管道LBB稳定性分析的工程估算方法 被引量:2

THE ENGINEERING ASSESSMENT METHOD FOR LBB STABILITY ANALYSIS IN PRESSURE VESSELS AND PIPES
下载PDF
导出
摘要 本文依据文献[1]所建立的管道环向裂纹在简单加载下的撕裂失稳与塑性失稳应力的近似关系式,构造了复合加载下撕裂失稳与塑性失稳应力的工程近似关系表达式:并针对4种材料、40种裂纹构形工况,进行了失稳评定计算:经与文献[2]提出的精细分析方法所得的结果对比,一般偏离不超过4%,满足了工程评定要求,鉴于LBB稳定性分析的工程估算方法易于被非专业人员掌握和接受,并能省时省力,预计将能对LBB评估技术的发展起重要的作用。 Based on the engineering approximate relation. in reference [1],between tearing instability stress and plastic collapse stress under simple loading for circumferential throughwall crack of pipes, a new approximate relation between them under combined loading is established. By the new approximate relation, the engineering assessments for 4 materials and 40 crack configurations and loading status are carried out. The results are in agreements with those of precise analgtical method in reference [2]. It is believed that the new engineering assessment method can certainly play an important role in LBB stability analysis for pressure vessels and pipes.
出处 《工程力学》 EI CSCD 北大核心 2000年第1期13-19,共7页 Engineering Mechanics
关键词 LBB分析 压力容器 管道 稳定性 工程估算 circumferential crack tearing instability, plastic collapse, combined loading, LBB analysis
  • 引文网络
  • 相关文献

参考文献4

二级参考文献6

  • 1Dong Y M,Nucl Eng Design,1993年,142卷,27页
  • 2K Wichman,Int J Pres Ves & Piping,1990年,43卷,57页
  • 3Shih CF,NP-1931, RP1237-1,Topical Report,1981年
  • 4董亚民,内蒙古工业大学学报,1997年,16卷,3期
  • 5Dong Y M,Nucl Eng Design,1993年,142卷,27页
  • 6董亚民.压力容器及管道环向表面裂纹复合加载下的延性断裂评定[J].内蒙古工业大学学报(自然科学版),1997,16(3):51-59. 被引量:2

共引文献8

同被引文献30

  • 1周剑秋,沈士明.压力管道先漏后爆(LBB)理论的进展与需解决的问题[J].管道技术与设备,1996(3):26-28. 被引量:4
  • 2冯西桥,何树延.表面裂纹疲劳扩展的一种损伤力学方法[J].清华大学学报(自然科学版),1997,37(5):78-82. 被引量:16
  • 3FLET: Pipe Crack Instability Program. NP 6717-CC-ML, RP 1757-73, EPRI[R]. 1990:10-50.
  • 4NUREG-1061, Vol.3, US Nuclear Regulatory Commission, Evaluation of Potential for Pipe Breaks[R]. 1984:3-23.
  • 5US NRC Standard Review Plan, 3.6.3 Leak Before Break Evaluation Procedures[R]. Washington, DC, 1986:2-9.
  • 6Rahman S. Refinement Crack-Opening-Area Analyses and Evaluation of for Circumferential Through-Wall Crack in Pipes[R]. NUREG/CR-6300, 1995:20-50.
  • 7Chattopadhyay J. Estimation Schemes to Evaluate Elastic-Plasticj and COD for Throughwall Circumferentially cracked Elbow Under Closing Moment[C]. SMIRT 18, 2005:1796-1810.
  • 8International Atomic Energy Agency. Guidance of the Application of the LBB Concept[R]. IAEA-TECDOC- 774. Vienna, 1994:34-53.
  • 9Dae-Youl Chung, Hyuk-Soon Lim. Applicability of LBB (Leak -Before -Break) Design for Main Steam Line in Korea Nuclear Power Plant[C]. SMIRT 16, 2001: 1625-1630.
  • 10Hubert Deschanels, C6cile Krakowiak. Leak Before Break Procedure for SFR Reactors and HTR Reactors -Improvements and Validation[C]. SMIRT 19, 2007:1-8.

引证文献2

二级引证文献12

;
使用帮助 返回顶部