管道焊缝裂纹扩展的流固磁耦合表征

doi:10.11896/j.issn.1005-023X.2018.16.028

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Abstract A general fluid-solid-magnetic coupling method for single-crack and multi-cracks growth was provided by using virtual crack closure technique (VCCT) in this paper. The growth behavior of cracks in the pipe lines, which affected by the action of the fluid-pipe weld structure-magnetic coupling effect with the dynamic increase of the fluid pressure, was investigated in detail. Results indicate that when the pressure load of the relevant fluid increases every time, this method completes a crack increment growth, and it renews the crack geometry, then the mesh is reconstructed and the crack growth calculation and magnetic field analysis are carried out in this cycle, and the fluid-solid-magnetic coupling of weld crack growth in ferromagnetic pipeline is achieved. The numerical simulation examples of single-crack and multiple-cracks in different circumferential position of pipe weld are taken as numerical examples. The crack opening distance and crack growth length of crack growth are described according to the growth results. The peak value of horizontal component of magnetic induction intensity and the peak value of vertical component of magnetic induction intensity are applied to measure the dangerous grade of the location of cracks, so as to judge the damage position and damage degree of pipeline weld, and it is also used to identify multiple cracks or single cracks. The realization of the method can provide a theoretical basis for the detection and evaluation of weld cracks in in-service pipeline by magnetic flux leakage method, and the remanufacture, repair of pipelines.

Key words： ferromagnetic material pipe weld fluid-solid-magnetic multifield coupling crack growth magnetic flux leakage detection

Published: 18 September 2018

CLC number:

TB34

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	Articles by authors
	CUI Wei
	WANG Ke
	JIANG Minzheng
	MA Chunyang
	FENG Ziming
	LENG Jiancheng

Cite this article:

CUI Wei,WANG Ke,JIANG Minzheng, et al. Characterization on Fluid-Solid-Magnetic Multifield Coupling of the Weld Cracks Growth in Pipelines[J]. Materials Reports, 2018, 32(16): 2852-2858.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.16.028 OR http://www.mater-rep.com/EN/Y2018/V32/I16/2852

1 Shi L Y, Yu T T. Analysis of multiple crack growth using extended finite element method[J]. Rock and Soil Mechanics,2014,35(1):263(in Chinese).
石路杨,余天堂.多裂纹扩展的扩展有限元法分析[J].岩石力学,2014,35(1):263.
2 Di Y L, Wang H D, Dong L H, et al. Application of the extended finite element method in crack propagation[J]. Materials Review A: Review Papers,2017,31(2):70(in Chinese).
底月兰,王海斗,董丽虹,等.扩展有限元法在裂纹扩展问题中的应用[J].材料导报:综述篇,2017,31(2):70.
3 Ahn J S, Woo K S. Delamination of laminated composite plates by p-convergent partial discrete-layer elements with VCCT [J]. Mecha-nics Research Communications,2015,66(6):60.
4 Meng L B, Chen P H. Virtual crack closure technique for delamination growth analysis of laminated composites and its application[J]. Acta Materiae Compositae Sinica,2010,27(1):190(in Chinese).
孟令兵,陈普会.层压复合材料分层扩展分析的虚拟裂纹闭合技术及其应用[J].复合材料学报,2010,27(1):190.
5 Cui W, Wang K, Zhang Q, et al. A recognition algorithm to detect pipe weld defects [J]. Tehnicki Vjesnik-Technical Gazette,2017,24(6):1969.
6 Magi F, Maio D D, Sever I. Validation of initial crack propagation under vibration fatigue by finite element analysis[J]. International Journal of Fatigue,2017,104(11):183.
7 Latifi M, Meer F, Sluys L. A level set model for simulating fatigue-driven delamination in composites[J]. International Journal of Fatigue,2015,80(11):434.
8 Riccio A, Damiano M, Raimondo A, et al. A fast numerical procedure for the simulation of inter-laminar damage growth in stiffened composite panels[J]. Composite Structures,2016,145(6):203.
9 Amiri-Rad A, Mashayekhi M, Meer F. Cohesive zone and level set method for simulation of high cycle fatigue delamination in composite materials[J]. Composite Structures,2017,160(1):61.
10 Naini J K, Ramesh B P. Impact analysis of embedded delamination location in hybrid curved laminated composite stiffened panel[J]. Applied Composite Materials,2016,23(4):1.
11 Jokinen J, Kanerva M. Analysis of cracked lap shear testing of tungsten-CFRP hybrid laminates[J]. Engineering Fracture Mechanics,2017,175(4):184.
12 Li Q. Material configurational mechanics with application to complex defects[J]. Chinese Journal of Theoretical and Applied Mechanics,2015,47(2):197(in Chinese).
李群.材料构型力学及其在复杂缺陷系统中的应用[J].力学学报,2015,47(2):197.