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1 Acta Mechanica et Automatica

1 2024

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Research of dynamic processes in a layer during collision with an impactor

Pyr'yev Yuriy, Pawlikowski Marek, Drobnicki Rafał, Penkul Andrzej

Acta Mechanica et Automatica

2024

Vol. 18, no. 4

585--592

The article concerns the modeling of the transverse impact of an impactor (test sample) on the surface of an infinite elastic layer. The Laplace transform with respect to time and the Hankel transform with respect to the radius for the axisymmetric case were applied. The propagation of elastic waves in the layer and local deformations in the contact zone are taken into account. Impact force, impact time and the coefficient of restitution were examined. The results are compared with the elastic half-space. The calculations carried out showed that for layer thicknesses of more than five impactor diameters, the layer can be considered as a half-space.