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An accurate determination of the pressure to cause plastic collapse of a pipe is important when considering its structural integrity. This paper explores the way in which initial stresses, induced by either load or displacement controlled bending, influence plastic collapse as a result of internal pressure. Both open ended and closed ended pipes are considered. The effect of initial bending stresses...
Structural integrity assessments of pressurised pipes include plastic collapse as a potential failure mode. This paper uses analytical and numerical models to explore the effect of the end conditions of the pipe on the collapse pressure. The pipe is open-ended and two bounding conditions are addressed: one where axial loading is applied to the ends of the pipe and the other where a fixed axial displacement...
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