| || Analysis of axisymmetric crushing of frusta
Author : Khan, M. M. A.;Abbas, H.;Gupta, N. K.
Source : Defence Science Journal ; Vol:53(1) ; 2003 ; pp 41-50
Subject : 620.1 Material Science and Technology
Keywords : Thin walled structures;Energy absorbers;Cylindrical tubes;Frusta;Energy absorbing device;Curved fold model;Axisymmetric crushing
Abstract : "The paper presents a curved-fold model with variable straight length for the axisymmetric crushing of thin frusta. The folding considered in the model is partly inside and partly outside. The variation of circumferential strain during the formation of a fold has been taken into account. The size of the fold and mean, as well as variation of crushing load, has been computed mathematically. The study is purely analytical and does not involve any empirical constant; and hence, can be used in general. The model's predictions have been compared with experimental results and a reasonably good agreement has been observed. "