Experimental and numerical study on the indentation response of mechanically lined pipe

IF 3 2区工程技术 Q2 ENGINEERING, MECHANICAL

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-03 DOI:10.1016/j.ijpvp.2025.105433

Lin Yuan , Jinwei He , Chuangyi Wang , Dongdong Ren

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引用次数: 0

Abstract

Mechanically lined pipe (MLP) has become a low-cost and reliable solution for transporting corrosive hydrocarbons and has been used in many onshore and offshore projects. During the long-term service period, MLP is susceptible to impacts from third-party foreign objects, which can lead to severe local denting and potential failure. The indentation response of MLP to these events is still not fully understood. This paper conducted an experimental and numerical study based on lined pipe specimens fabricated using a custom hydraulic expansion facility. The lined pipes, which have finished diameters of 50 mm, are composed of a carrier made of carbon steel Grade GB45 (AISI 1045) and a liner made of copper Grade T2. Four types of indenters, including spherical, cylindrical, wedge, and square shapes, are adopted to introduce dents into the specimens. The indentation experiment was also performed on single-wall counterpart pipes. The results show that different indenters lead to distinct liner separation profiles along the specimen's length. The axial strain distribution near the dent exhibits opposite behavior between the carrier and liner tubes. In addition, the mechanical contribution of the liner and the influence of carrier pipe thickness are also discussed.

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来源期刊

International Journal of Pressure Vessels and Piping 工程技术-工程：机械

CiteScore

5.30

自引率

13.30%

发文量

208

审稿时长

17 months

期刊介绍： Pressure vessel engineering technology is of importance in many branches of industry. This journal publishes the latest research results and related information on all its associated aspects, with particular emphasis on the structural integrity assessment, maintenance and life extension of pressurised process engineering plants. The anticipated coverage of the International Journal of Pressure Vessels and Piping ranges from simple mass-produced pressure vessels to large custom-built vessels and tanks. Pressure vessels technology is a developing field, and contributions on the following topics will therefore be welcome: • Pressure vessel engineering • Structural integrity assessment • Design methods • Codes and standards • Fabrication and welding • Materials properties requirements • Inspection and quality management • Maintenance and life extension • Ageing and environmental effects • Life management Of particular importance are papers covering aspects of significant practical application which could lead to major improvements in economy, reliability and useful life. While most accepted papers represent the results of original applied research, critical reviews of topical interest by world-leading experts will also appear from time to time. International Journal of Pressure Vessels and Piping is indispensable reading for engineering professionals involved in the energy, petrochemicals, process plant, transport, aerospace and related industries; for manufacturers of pressure vessels and ancillary equipment; and for academics pursuing research in these areas.