Author(s)

Ch. Provatidis, A. Kanarachos & D. Venetsanos

Abstract

Strength analysis of buried curved pipes due to blast explosions Ch. Provatidis, A. Kanarachos & D. Venetsanos Department of Mechanical Engineering, National Technical University of Athens, 9 Heroon Polytechniou Avenue, GR-157 73 Athens, Greece Abstract With the advent of new low-cost and powerful computers and explicit time- integration FEM codes, three-dimensional models are now available for the transient response analysis of buried structures due to blast explosions in their proximity. In the industrial domain, a most interesting issue is to determine the critical distance between the center of the explosion and the buried structure in order to insure its integrity. In the present paper a systematic study is presented on the stresses induced to buried pipelines, focussing on their curved parts such as elbows and tees. In more detail, it was examined whether the curved parts of a pipeline suffer more compared to the straight parts. For the purposes of the present study, the d

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