Influence of Internal Pressure on the Impact Behavior of Steel Pipelines

[+] Author and Article Information
N. Jones, R. S. Birch

Impact Research Centre, Department of Mechanical Engineering, The University of Liverpool, Liverpool L69 3BX, U.K.

J. Pressure Vessel Technol 118(4), 464-471 (Nov 01, 1996) (8 pages) doi:10.1115/1.2842215 History: Received April 13, 1995; Revised February 23, 1996; Online February 11, 2008


This article presents some experimental data recorded from 54 impact tests on pressurized mild steel pipes. The pipes were fully clamped across a span which was ten times the outside pipe diameter of 60 mm. The pipes had a wall thickness of 1.70 mm and were impacted laterally by a rigid wedge indenter at the mid-span and one-quarter-span positions. The impact velocities ranged up to 13.6 m/s and caused large inelastic indentations for the lower values and at higher values a loss of integrity which could occur underneath the indenter and/or at an end support. The critical values for the two failure energies were obtained for a range of internal gas pressures.

Copyright © 1996 by The American Society of Mechanical Engineers
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