Evaluation of Drop Impact Load for Thin Cone-Shaped Structures

Takahiro Omori; Hirotsugu Inoue; Noriyasu Kawamura; Minoru Mukai; Kikuo Kishimoto; Takashi Kawakami

doi:10.4028/www.scientific.net/KEM.353-358.2648

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 353-358Evaluation of Drop Impact Load for Thin...

Evaluation of Drop Impact Load for Thin Cone-Shaped Structures

Abstract:

A method to predict impact load caused by drop impact of thin cone-shaped structures is investigated. The Hertzian contact theory and the spherical shell theory are applied for modeling the contact stiffness of the impact tip of the cone. Experiments and finite element simulations are performed for several cones to evaluate the accuracy of impact load prediction. It is shown that appropriate choice of contact stiffness model depending on the curvature and thickness of impact tip of the cone is necessary in order to predict the impact load accurately.