Plastic collapse analysis of defective pipelines under multi-loading systems

Liu, Y.H. and Cen, Z.Z. and Chen, Haofeng and Xu, B.Y. (2000) Plastic collapse analysis of defective pipelines under multi-loading systems. International Journal of Mechanical Sciences, 42 (8). pp. 1607-1622. ISSN 0020-7403

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Abstract

In this paper, a finite element mathematical programming formulation is presented for the kinematic limit analysis of 3-D rigid-perfectly plastic bodies. A numerical path scheme for radial loading is adopted to deal with complex multi-loading systems. A direct iterative algorithm is employed in solving the above optimization formulation. The numerical procedure has been applied to carry out the plastic collapse analysis of defective pipelines under multi-loading systems. The engineering situation considered has a practical importance in the pipeline industry. The effects of four kinds of typical part-through slots on the collapse loads of pipelines are investigated and evaluated. Some typical failure modes corresponding to different configurations of slots and loading forms are studied.

Author(s):Liu, Y.H., Cen, Z.Z., Chen, Haofeng ORCID logoORCID: https://orcid.org/0000-0001-6864-4927 and Xu, B.Y.
Item type:Article
ID code:36396
Keywords:collapse analysis, pipelines, loading path , mathematical programming , Mechanical engineering and machinery, Mechanics of Materials, Civil and Structural Engineering, Materials Science(all), Mechanical Engineering, Condensed Matter Physics
Subjects:Technology > Mechanical engineering and machinery
Department:Faculty of Engineering > Mechanical and Aerospace Engineering
Depositing user: Pure Administrator
Date deposited:14 Dec 2011 12:15
Last modified:17 Jan 2020 22:56
URI:https://strathprints.strath.ac.uk/id/eprint/36396
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