Energy dissipation during impacts of spheres on plates: Investigation of developing elastic flexural waves

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:106

Article

Boettcher, Ronny¹  Russell, Alexander¹  Mueller, Peter¹ 

[1] Otto von Guericke Univ, Mech Proc Engn, Univ Pl 2, D-39106 Magdeburg, Germany

关键词: Coefficient of restitution;    Contact model;    Elastic waves;    Impact;    Wave propagation;   

DOI  :  10.1016/j.ijsolstr.2016.11.016

来源: Elsevier

【 摘 要 】

The model of Zener describing the energy dissipation during an impact process due to a simple flexural wave has been modified by dividing the impact process into three phases. For this purpose, crucial results from the model of Koller have been used which describes the same energy dissipation exclusively with longitudinal and transversal waves. The resulting modified model represents a comprehensive analytical alternative to the model of Koller showing a direct relation to the model of Hunter. The modified model approximates the experimental values well and describes them better than the original model of Zener or the model of Koller. For the comprehensive investigation of the influence of the (developing) flexural wave, elastic as well as elastic-plastic materials have been used as model materials for the experiments. (C) 2016 Elsevier Ltd. All rights reserved.

【 授权许可】

Free