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Journal ArticleDOI

Numerical study for identification of influence of energy absorption and frontal crush for vehicle crashworthiness

01 Nov 2017-Vol. 263, Iss: 6, pp 062075
About: This article is published in Microelectronics Systems Education.The article was published on 2017-11-01 and is currently open access. It has received 1 citations till now. The article focuses on the topics: Crashworthiness.
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25 Jul 2020
TL;DR: In this article, el comportamiento del flujo vehicular en un corredor vial, determinado los indices of accidentalidad, morbilidad, mortabilidad, velocidad vehicular and el volumen of vehiculos que transitan por this sector, estableciendo los puntos criticos de accidentidalad vial mediante el analisis estadistico basado en los informes suministrados, graficas and comparaciones for un mayor entendimiento of la situ
Abstract: En esta investigacion se analiza el comportamiento del flujo vehicular en un corredor vial, determinado los indices de accidentalidad, morbilidad, mortabilidad, velocidad vehicular y el volumen de vehiculos que transitan por este sector, estableciendo los puntos criticos de accidentalidad vial mediante el analisis estadistico basado en los informes suministrados, graficas y comparaciones para un mayor entendimiento de la situacion que corren riesgo los conductores y peatones, mientras que se visualiza que cada ano aumenta un 1% la tasa de muertes por accidentes de trafico, la velocidad vehicular se encuentra en el 72 km/h y el volumen vehicular fue descendiendo.
References
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Journal ArticleDOI
TL;DR: In this article, a total of 70 quasi-static tests were conducted on circular 6060 aluminium tubes in the T5, as-received condition and the average crush force, FAV, was non-dimensionalised and an empirical formula established as FAV/MP=72.3(D/t)0.32.

413 citations

Journal ArticleDOI
TL;DR: In this article, the effects of multi-cell configurations and oblique loads on the crashworthiness performance have been under studied and it is found that for the same cell number, the number of corners plays a significant role in enhancing energy absorption.

206 citations

Journal ArticleDOI
TL;DR: In this paper, a multiobjective optimization technique is adopted to solve the problem of maximization of absorbed energy and specific absorbed energy of tubes, and the dynamic crash responses of aluminum tubes are determined from the finite element simulation.
Abstract: This research deals with the development of circular aluminum tubes for crashworthiness. The dynamic crash responses of aluminum tubes are determined from the finite element simulation. In order to validate the FE results some dynamic impact test on aluminum tubes are performed. Multiobjective optimization technique is adopted to solve the problem of maximization of absorbed energy and specific absorbed energy of tubes. The D-optimal design of experiments [Atkinson AC, Donev AN, Optimum experimental designs. Oxford: Oxford Science Publications; 1992] and the response surface method are applied to construct an approximated design sub-problem and the optimization process is repeated until the convergence criteria are satisfied.

118 citations

Journal ArticleDOI
TL;DR: In this paper, an explicit finite element code, DYNA3D, is adopted for simulating complicated crushing behavior of tubular structures, and the response surface approximation technique is applied to construct an approximated design subproblem in the preassigned design space by using the technique of design-of-experiment.
Abstract: This paper concerns the development of crashworthiness maximization techniques for tubular structures, and the application to the axial crushing problem of cylindrical tubes as well as square tubes. In the program system presented in this study, an explicit finite element code, DYNA3D is adopted for simulating complicated crushing behaviour of tubular structures. The response surface approximation technique is applied to construct an approximated design subproblem in the preassigned design space by using the technique of design-of-experiment. The approximated subproblem is solved by the usual mathematical programming technique. These optimization processes are repeated until the given convergence conditions are satisfied. Moreover, a comparison of the crushing energy absorption between cylindrical tubes and square tubes is discussed.

101 citations