Multiobjective optimization of multi-cell sections for the crashworthiness design

Hou, Shujuan; Li, Qing; Shu-yao, Long; Yang, Xujing; Li, Wei

doi:10.1016/j.ijimpeng.2007.09.003

Cited by 217 publications

(84 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The optimization design can be achieved by using the surrogate models in the optimization algorithm, such as the multi-objective particle swarm optimization (MOPSO) algorithm and desirability approach. Many studies have used RSM with the optimization algorithm to seek an optimal design for the thin-walled tubes under pure axial [19][20][21], bending [22], and oblique loads [23].…”

Section: Introductionmentioning

confidence: 99%

Crush analysis and multi-objective optimization design for circular tube under quasi-static lateral loading

Baroutaji

Gilchrist

Smyth

et al. 2015

Thin-Walled Structures

155

View full text Add to dashboard Cite

Abstract:This paper addresses the energy absorption behaviour and crashworthiness optimisation of short length circular tubes under quasi-static lateral loading. Finite element (FE) models were developed using implicit FE code ANSYS to simulate the deformation behaviour and energy absorption of circular tube under lateral loading.These FE models were validated using experimental techniques to ensure that they can predict the responses of circular tube with sufficient accuracy. Response Surface Methodology (RSM) for design of experiments (DOE) was used in conjunction with finite element modelling to evaluate systematically the effects of geometrical parameters on the energy absorption responses of laterally crushed circular tubes.Statistical software package, Design-Expert, was used to apply the response surface methodology (RSM). The energy absorbing responses (specific energy absorbing capacity (SEA) and collapse load (F)) were modelled as functions of geometrical factors (tube diameter, tube thickness, and tube width). These developed functions allow predictions of the energy absorption response of laterally crushed tubes, based on their geometry parameters. Based on DOE results, parametric studies were conducted to generate design information on using the laterally crushed tubes in energy absorbing systems. Finally, the approach of multi-objective optimization design (MOD) was employed to find the optimal configuration of the proposed energy absorption structures.Design-Expert software, which employs the desirability approach as optimization algorithm, was used for solving the MOD problem.

show abstract

Section: Introductionmentioning

confidence: 99%

Crush analysis and multi-objective optimization design for circular tube under quasi-static lateral loading

Baroutaji

Gilchrist

Smyth

et al. 2015

Thin-Walled Structures

155

View full text Add to dashboard Cite

show abstract

“…The alloy shows a ductility of 8.4% and a proof strength of 105 MPa parallel to the extrusion direction. The plastic-kinematic hardening material model parameters of 6061T4 Al alloy were taken from reference [9] and are tabulated in Table 2. The compression stress-strain curves of Alulight foams at various relative densities are shown in Figure 5(a).…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, an optimisation schedule is often needed in order to reveal the advantages of foam filling. The optimisation of the specific energy absorption (SEA) of the multi-corner thin-walled columns was previously investigated using the response surface methodology (RSM) with several different objective functions including linear, quadratic, cubic and quintic polynomials [9,11]. A minimum error was found, when a quadratic polynomial objective function was used.…”

Section: Introductionmentioning

confidence: 99%

The optimisation of the energy absorption of partially Al foam-filled commercial 1050H14 and 6061T4 Al crash boxes

Toksoy

Güden

2011

International Journal of Crashworthiness

View full text Add to dashboard Cite

Partially Alulight and Hydro Al closed-cell foam-filled commercial 1050H14 Al and 6061T4 Al crash boxes were optimised using the response surface methodology in order to maximise specific energy absorption (SEA). The quasi-static crushing of empty and filled crash boxes was simulated using LS-DYNA, and the results were further confirmed with experimental quasi-static crushing testing of empty and Alulight foam-filled commercial 1050H14 Al crash boxes. Results showed that partial foam filling of commercial crash boxes increased both SEA and mean load because of foam filler axial and lateral deformation in between the progressing folds of the crash box. Within the studied constraint range of box mean load, box wall thickness and foam filler density, the optimised Alulight and Hydro foam-filled 1050H14 and 6061T4 crash boxes resulted in 26%–40% increase in total energy absorption as compared with empty crash boxes. Considering the same weight basis, the use of a higher yield strength box wall material and higher plateau stresses of Al foam filler resulted in higher energy absorptions in partial foam-filled boxes at relatively low displacements.TÜBİTAK for the grant no. 106M18

show abstract

“…To account for the lightweight design and crashworthiness, two objective functions are used: f EA = EA(t) and f m = m(t). The optimization problem is then formulated using the geometrical average method [13]. In this method, the efficiency coefficient of these two objectives is expressed in the form of cost function F E : where it is required to maximize,…”

Section: Optimization Equationsmentioning

confidence: 99%

Effect of Automotive Side Member Materials on the Head Injury Criteria (HIC) and Chest Severity Index (CSI) of Adult Passenger

Salwani

Ali

Sahari

et al. 2016

IJET

View full text Add to dashboard Cite

ABSTRACT. This paper presents the results for Head Injury Criteria (HIC) and Chest Severity Index (CSI) of an adult occupant in frontal impact. The component being studied is side member as impact energy absorber. Steel side member is used as the benchmark material, whereas aluminum alloy is used as lightweight material. Crash analyses are conducted using nonlinear finite element analysis software Ls-dyna. The effect of different types of aluminum alloy and component thickness on the HIC, CSI, weight and energy absorbed is assessed and discussed. A cost function is then formulated with the geometrical average method to solve the multi-objective problem. The HIC36 and CSI are set as minimum requirements in the optimization. The materials used was Aluminium alloy of AA 5182 AA5751. It was found that AA5751 with inner and outer thickness of 2.8 mm and 4.9 mm respectively, provides a reduction in mass of 1.03 kg compared with steel and has energy absorbed of 11.9 kJ. The lowest values of HIC36 and CSI obtained are 1146 and 665.4 respectively.

show abstract

Multiobjective optimization of multi-cell sections for the crashworthiness design

Cited by 217 publications

References 28 publications

Crush analysis and multi-objective optimization design for circular tube under quasi-static lateral loading

Crush analysis and multi-objective optimization design for circular tube under quasi-static lateral loading

The optimisation of the energy absorption of partially Al foam-filled commercial 1050H14 and 6061T4 Al crash boxes

Effect of Automotive Side Member Materials on the Head Injury Criteria (HIC) and Chest Severity Index (CSI) of Adult Passenger

Contact Info

Product

Resources

About