Car Crashworthiness/Human SafetyNo Access

ENERGY ABSORPTION EFFICIENCY IN CELLULAR SOLIDS

Department of Mechanical Engineering, Kyushu Sangyo University, 2-3-1 Matsukadai, Higashi-ku, Fukuoka-shi, 813-8503, Fukuoka, Japan

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DAI-HENG CHEN

Department of Mechanical Engineering, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan

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HIRONOBU NISITANI

Department of Mechanical Engineering, Kyushu Sangyo University, 2-3-1 Matsukadai, Higashi-ku, Fukuoka-shi, 813-8503, Fukuoka, Japan

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https://doi.org/10.1142/S021797920804733XCited by:5 (Source: Crossref)

Abstract

In this paper, a new type of honeycomb structure is proposed to enhance the energy absorption capacity for a honeycomb structure, and investigated its energy absorption efficiency (absorbed energy per unit volume) by finite element method (FEM). This model has small arc-shaped parts on the double cell wall, and can be manufactured by a similar way of standard honeycomb structures. Also, the proposed structure has large rigidity of plastic bending without increasing the mass. In this paper, effects of geometrical properties on the energy absorption characteristics are discussed.

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