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天然气管道动态断裂参数与裂纹速度关系的研究 被引量：5

STUDY ON THE RELATIONSHIP BETWEEN DYNAMIC FRACTURE PARAMETERS AND CRACK PROPAGATION VELOCITY IN GAS PIPELINES
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摘要 通过全尺寸试验的数据和小试件试验确定的材料动态断裂韧性,采用裂纹减速机制和节点力释放技术,利用有限元方法模拟了天然气管道动态断裂全过程,研究了天然气管道裂纹扩展速度与材料动态断裂参数之间的关系。 Based on the data obtained from full-scale experiment and the dynamic fracture toughness of X70 steel deduced from the small scale impact test, the dynamic propagation process of gas pipelines is simulated with FEM by adopting the deceleration mechanism and node force release technology, and the relationship between dynamic fracture parameters and crack propagation velocity is investigated.
作者 杨小彬 庄茁 居来提.买买提肉孜
机构地区 清华大学航院工程力学系 新疆大学机械工程学院
出处 《工程力学》 EI CSCD 北大核心 2006年第A01期145-150,共6页 Engineering Mechanics
基金 国家自然科学基金资助项目(10272060)
关键词 动态应力强度因子 天然气管道 能量释放率 有限元 实验 dynamic stress intensity factor gas pipeline energy release rate FEM experiment
分类号 O346.1 [理学—固体力学] TU318 [建筑科学—结构工程]
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参考文献11

  • 1Makino Hiroyuki,Kubo Takahiro,Shiwaku Toyoaki.Prediction for crack propagation and arrest of shear fracture in ultra-high pressure natural gas pipelines[M].In:Proceedings of the Special Party of ASME,Langfang,2000.103～118.
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二级参考文献6

  • 1[2]Anon. Cited in EPRG report on toughness for crack arrest in gas pipelines [J]. 3R International, 1983, 22: 98-105.
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  • 6[8]B Eiber, R Eiber, Lorne Carlson, et al. Fracture propagation control for the alliance pipeline [M]. In: Proceedings of the Special Party of ASME, Langfang, 2000. 1-34.

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同被引文献86

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二级引证文献30

工程力学
2006年 第A01期

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