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 (https://doi.org/10.1016/S0020-7403(99)00093-4)

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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.

ORCID iDs

Liu, Y.H., Cen, Z.Z., Chen, Haofeng ORCID logoORCID: https://orcid.org/0000-0001-6864-4927 and Xu, B.Y.;
CORE (COnnecting REpositories)