A Study of Stress Wave Propagation in Thin Plate Loaded by an Oblique Impact

Trnka, Jan; Kolman, Radek; Dvořáková, Pavla; Veselý, Eduard
May 2009
International Review of Mechanical Engineering;May2009, Vol. 3 Issue 3, p322
Academic Journal
The paper deals with the study of stress waves propagation in a thin steel plate. Impact loading was realized by means of loading element with the exploding wire. The full-field visualization of the displacements caused by the generated waves was carried out by double-pulse holointerferometry (DPHI) with the ruby laser as a source of light. The history of acceleration in different points on the plate surface was studied simultaneously by miniature accelerometers. It is shown that loading in such a way enables us to generate not only the perpendicular impact but also the oblique one as well. The experimental results are compared with numerical ones and their agreement is very good. It is shown that generation of oblique impact by loading elements with the exploding wires is reliable and promising for study of transient phenomena in thin-walled structures.


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