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On the plastic collapse of horizontal saddle supported storage vessels

Nash, D.H. and Spence, J. and Tooth, A.S. (2003) On the plastic collapse of horizontal saddle supported storage vessels. In: Proceedings of the 10th International Conference on Pressure Vessel Technology, Design by Analysis, 2003-07-07 - 2003-07-10.

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The present paper summarises a comprehensive programme of work on collapse loads of horizontal cylindrical saddle supported storage vessels. A programme of tests was conducted on 40 model vessels that included both welded and loose saddles. Different collapse behaviours were observed depending largely on the radius to thickness ratio of the vessels. A range of theoretical approaches were explored and compared with the experimental results. The best theoretical comparison was then used to conduct a parametric survey covering a total of 218 cases. The results of the survey have been presented in the form of simple design graphs.