IMPACT OF CRACK-INDUCED DAMAGE ON THE DYNAMIC STABILITY OF A FLUID-TRANSPORTING PIPE SUPPORTED BY A WINKLER ELASTIC FOUNDATION

Dimitar LOLOV, Svetlana LILKOVA-MARKOVA

Abstract


The Pipeline transport proves to be a highly efficient means of transporting fluids over long distances. Some of its benefits include continuity of transport, substantial volume capacity, lower energy costs and provides large environmental benefits. Pipelines damage could have negative effects on the economy, the environment and cause health and safety issues for the population. Therefore, the safety issues garner significant attention in both industry and science. The current study explores the dynamic stability of a cracked simply supported pipe. Throughout its entire length the pipe rests on a Winkler elastic foundation. The problem is numerically approached through the Galerkin method. The study provides insights into how both the crack and the parameters of the elastic foundation affect the stability of the system.

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References


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