Two materials S-frame representation for improving crashworthiness and lightening

Tehrani, Parisa Hosseini; Nikahd, M

doi:10.1016/j.tws.2006.04.002

Cited by 32 publications

(21 citation statements)

References 6 publications

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“…Tehrani and Nikahd [6,7] investigated different arrangements of straight and oblique ribs on the S-shaped tube in order to control the longitudinal and bending collapses. More recent studies have shown that substitutions with better material are generally more effective than structural modification in improving automobile crashworthiness and in producing lighter weight [7]. Aluminum alloys have been put forward to replace low-strength steel structural components within automobiles.…”

Section: Introductionmentioning

confidence: 99%

Crash analysis and energy absorption characteristics of S-shaped longitudinal members

Elmarakbi

Long

MacIntyre

2013

Thin-Walled Structures

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This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.Other uses, including reproduction and distribution, or selling or licensing copies, or posting to personal, institutional or third party websites are prohibited. a b s t r a c t This paper presents finite element simulations of the crash behavior and the energy absorption characteristics of thin S-shaped longitudinal members with variable cross-sections made of different materials to investigate the design of optimized energy-absorbing members. Numerical studies are carried out by simulation via the explicit finite element code LS-DYNA [1] to determine the desired variables for the design of energy-absorbing members. The specific energy absorption (SEA), the weight of the members and the peak force responses during the frontal impact are the main measurements of the S-shaped members' performance. Several types of inner stiffening members are also investigated to determine the influence of the additional stiffness on the crash behavior.

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Section: Introductionmentioning

confidence: 99%

Crash analysis and energy absorption characteristics of S-shaped longitudinal members

Elmarakbi

Long

MacIntyre

2013

Thin-Walled Structures

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“…Zheng and Wierzbicki [15] represented a combined experimental, analytical, and numerical study on the quasi-static axial crushing of thin-walled aluminium S-rails with circular crosssection. Hosseini-Tehrani [16] showed that a hybrid S-frame made of steel and aluminium gives better characteristic regarding passenger safety and weight efficiency.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Investigation into the Quasi-Static Crushing Behaviour of the S-Shape Square Tubes

et al. 2011

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Vehicle energy absorbing components usually have a curved shape to avoid interference with other components like engine, driving system and fuel tank, etc. Crush behaviour of the S-shape square tubes, as a simplified model of front member of a vehicle body, is investigated in the present study. Experimental and numerical investigation into the quasi static crushing of such tubes was performed. Experimental tests were carried out with cross head speed of 5mm/min. Finite element analysis was performed using ABAQUS/Explicit to simulate quasi-static tests conditions. The predicted crushing characteristics such as global deformation mode, plastic folding mode and load-displacement response obtained by numerical approach were found to be in good agreement with the experimental results. The validated numerical model was then used in the parametric study to examine the effect of design parameters such as wall thickness, web width, curve angle and radius of curvature on the energy absorption capability of the S-shape square tubes. It is shown that some interesting relationships can be discovered by the parametric study to be used as useful design approach for improving the performance of the S-shape tubes.

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“…Li et al [6] described a method of making automobile body parts more lightweight with high-strength steel sheets with less depth to replace the original design of mild steel under the constraint of retaining the crashworthiness of the parts. Hosseini-Tehrani and Nikahd [7] studied various simplified models of the automotive side member with a hybrid component made of steel and aluminum. Zhou et al [8] also conducted numerical studies on the automotive side member of hybrid materials to reduce the peak impact force while increasing the total absorbed energy of the component.…”

Section: Introductionmentioning

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

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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.

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Two materials S-frame representation for improving crashworthiness and lightening

Cited by 32 publications

References 6 publications

Crash analysis and energy absorption characteristics of S-shaped longitudinal members

Crash analysis and energy absorption characteristics of S-shaped longitudinal members

Experimental and Numerical Investigation into the Quasi-Static Crushing Behaviour of the S-Shape Square Tubes

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

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