@article{ref1,
title="Energy absorption characteristics and a meta-model of miniature frusta under axial impact",
journal="International journal of crashworthiness",
year="2016",
author="Azimi, Mohammadbagher B. and Asgari, Masoud",
volume="21",
number="3",
pages="222-230",
abstract="In this paper, crushing characteristics of small-sized conical tubes called miniature frusta under axial loading have been studied. Finite-element model is developed using non-linear explicit code LS_DYNA to investigate the non-symmetrical fold patterns as well as material and geometrical non-linearity of frusta. Numerical simulation is first validated by confirming the results using experimental test data. Effects of shell thickness, semi-epical angle of cone and frusta's length on energy absorption characteristics are then studied by carrying out a parametric study. Based on the crushing parameters of numerous examples, a simplified analytical model as a meta-model for the mean crushing force of miniature frusta is presented using a Genetic Algorithm optimization for finding the meta-model coefficients. Miniature frusta show promising behaviour in lightweight design and crash analysis as their response results in low peak force and efficient-specific energy absorption. Obtained results from the developed meta-model showed good concurrence with finite elements method (FEM) model.<p /> <p>Language: en</p>",
language="en",
issn="1358-8265",
doi="10.1080/13588265.2016.1164445",
url="http://dx.doi.org/10.1080/13588265.2016.1164445"
}