Experimental studies on thin-walled grooved tubes under axial compression
作者： S. J. Hosseinipour , G. H. Daneshi
DOI: 10.1007/BF02427984
关键词: Axial symmetry 、 Work (thermodynamics) 、 Rotational symmetry 、 Solid mechanics 、 Composite material 、 Materials science 、 Groove (music) 、 Crashworthiness 、 Buckling 、 Deformation (meteorology)
摘要: We study experimentally the axial crushing behavior and crashworthiness characteristics of thin-walled steel tubes containing annular grooves. The grooves determine positions folds control buckling mode deformation. In present work we aim to improve uniformity load-displacement predict energy absorption capacity tubes. Grooves are cut circumferentially alternately inside outside at predetermined intervals. Quasi-static tests performed with different groove distances. Photographs taken during specimens after sectioned axially carry out measurements. deformation modes curves described mean post-buckling load determined. convolutions achieved by folding in an axisymmetric concertina about circumferential results show that curve absorbed can be controlled introduction
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