Failure Assessment for the High-Strength Pipelines with Constant-Depth Circumferential Surface Cracks

doi:10.1155/2018/2089514

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Failure Assessment for the High-Strength Pipelines with Constant-Depth Circumferential Surface Cracks
	Liu X ; Lu ZX; Chen Y(陈艳); Sui YL ; Dai LH(戴兰宏)
刊名	ADVANCES IN MATERIALS SCIENCE AND ENGINEERING
	2018-02-18
页码	2089514
ISSN号	1687-8434
DOI	10.1155/2018/2089514
英文摘要	In the oil and gas transportation system over long distance, application of high-strength pipeline steels can efficiently reduce construction and operation cost by increasing operational pressure and reducing the pipe wall thickness. Failure assessment is an important issue in the design, construction, and maintenance of the pipelines. The small circumferential surface cracks with constant depth in the welded pipelines are of practical interest. This work provides an engineering estimation procedure based upon the GE/EPRI method to determine the J-integral for the thin-walled pipelines with small constant-depth circumferential surface cracks subject to tension and bending loads. The values of elastic influence functions for stress intensity factor and plastic influence functions for fully plastic J-integral estimation are derived in tabulated forms through a series of three-dimensional finite element calculations for different crack geometries and material properties. To check confidence of the J-estimation solution in practical application, J-integral values obtained from detailed finite element (FE) analyses are compared with those estimated from the new influence functions. Excellent agreement of FE results with the proposed J-estimation solutions for both tension and bending loads indicates that the new solutions can be applied for accurate structural integrity assessment of high-strength pipelines with constant-depth circumferential surface cracks.
分类号	Q3
URL标识	查看原文
WOS关键词	ESTIMATION SCHEMES ; WALLED PIPES ; LIMIT LOADS ; CYLINDERS ; COD
WOS研究方向	Materials Science, Multidisciplinary
语种	英语
WOS记录号	WOS:000426635900001
资助机构	National Key Research and Development Program of China [2017YFB0702003] ; Nature Science Foundation of China [11132011, 11472287, 11572324] ; Key Research Program of Frontier Sciences [QYZDJSSW-JSC011] ; Chinese Academy of Sciences [XDB22040302, XDB22040303] ; CAS-SAFEA International Partnership Program for Creative Research Teams
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/77953]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.[Liu, X. 2.Lu, Z. X.] Beijing Univ Aeronaut & Astronaut, Inst Solid Mech, Beijing 100191, Peoples R China 3.[Chen, Y. 4.Dai, L. H.] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 5.[Chen, Y. 6.Dai, L. H.] Univ Chinese Acad Sci, Sch Engn Sci, Beijing 101408, Peoples R China 7.[Sui, Y. L.] China Natl Petr Corp, Pipeline Res Inst, Langfang 065000, Peoples R China
推荐引用方式 GB/T 7714	Liu X,Lu ZX,Chen Y,et al. Failure Assessment for the High-Strength Pipelines with Constant-Depth Circumferential Surface Cracks[J]. ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,2018:2089514.
APA	Liu X,Lu ZX,陈艳,Sui YL,&戴兰宏.(2018).Failure Assessment for the High-Strength Pipelines with Constant-Depth Circumferential Surface Cracks.ADVANCES IN MATERIALS SCIENCE AND ENGINEERING,2089514.
MLA	Liu X,et al."Failure Assessment for the High-Strength Pipelines with Constant-Depth Circumferential Surface Cracks".ADVANCES IN MATERIALS SCIENCE AND ENGINEERING (2018):2089514.