Design of crashworthy attenuator structures as a part of vehicle safety against impact: Application of waste aluminum can-based material

Prasetya, Laksmana Widi; Prabowo, Aditya Rio; Ubaidillah, Ubaidillah; Istanto, Iwan; Nordin, Nur Azmah

doi:10.1016/j.taml.2021.100235

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…A crash box is formed from a metal sheet into a shape with constant cross section, such as a thin-walled tube. Many energy absorption studies have focused on the behaviour of thin-walled structures during impact, and findings on thin-walled structures can be applied to crash boxes and components with similar shapes [11,12]. Researchers studying thin-walled structures seek to develop geometries that have great energy absorption but without increasing the peak crushing force and reducing the component mass [13,14].…”

Section: Introductionmentioning

confidence: 99%

Energy Dissipation Enhancement of Thin-Walled 6063 T5 Aluminium Tubes by Combining a Triggering Mechanism and Heat Treatment

Jiménez-Armendáriz,

Jimenez-Martinez,

Varela-Soriano

et al. 2023

Metals

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It is necessary to reduce the weight of components while maintaining or improving their mechanical properties to withstand dynamic loads in lightweight structures. In this study, heat treatment and a trigger mechanism were implemented for a thin-walled tube of aluminium to increase energy absorption while reducing the peak crushing force. Different geometries and locations were proposed to trigger deformation in a controlled manner, in combination with heat treatments. Experimental designs for each energy absorption mechanism were performed, and designs were tested by quasi-static crushing. Data obtained from experiments were used to calculate energy absorption indicators that were used to compared designs with components without mechanism to analyse performance. By comparing proposed designs with tubes without modification, the best combination of design variables for each trigger mechanism were identified. It was determined that 160 mm from the upper side, 250 mm2 area and a rectangular trigger shape reduced peak crushing force by 22.03% and increased energy absorption by 37.76%. For heat treatment, the optimal combination was heating in a furnace at 175 ∘C for 1 h and cooling in water at 70 ∘C during 10 min while only soaking half of its length. This combination reduced peak crushing force by 19.02% and increased energy absorption 15.08%. When these mechanisms were combined on a single tube, peak crushing force was reduced by 21.63%, and energy absorption increased by 42.53%.

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Section: Introductionmentioning

confidence: 99%

Energy Dissipation Enhancement of Thin-Walled 6063 T5 Aluminium Tubes by Combining a Triggering Mechanism and Heat Treatment

Jiménez-Armendáriz,

Jimenez-Martinez,

Varela-Soriano

et al. 2023

Metals

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show abstract

“…The works [3][4][5][6][7] are categorized as active technology which assists the driver to prevent an accident. The works [8][9][10][11] are categorized as passive technology where the structure of the vehicle is designed to protect the passengers and driver from fatal injury, minimizing fatalities. The ability of a vehicle to protect the passenger during a crash from fatal injury is called crashworthiness [12].…”

Section: Introductionmentioning

confidence: 99%

Development of impact attenuator analysis tools in crash scenario using Euler method and finite element analysis

et al. 2022

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The problem considered in this work is the development of simulation method for simulating car crash which utilizes simple car—impact attenuator model developed in MATLAB. Usually, car crash simulation is done using full finite element simulation which could take hours or days depending on the model size. The purpose of proposed method is to achieve quick results on the car crash simulation. Past works which utilizes simple car—impact attenuator model to simulate car crash use continuous time model and the impact attenuator parameter is obtained from the experimental results. Different from the related works, this work uses discrete time model, and the impact attenuator parameter is obtained from finite element simulation. Therefore, the proposed simulation method is not only achieving quick simulation results but also minimizing the cost and time in obtaining the impact attenuator parameter. The proposed method is suitable for parametric study of impact attenuator.

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“…Each joint was subjected to non-destructive and destructive tests to determine their mechanical properties as tensile strength and elongation. Investigated aluminium alloy grade is often used in the food packaging, production, architecture and automotive industries due to its high strength, workability, very high corrosion resistance and thermal stability [49,50].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Tool Shape and Process Parameters on the Mechanical Properties of AW-3004 Aluminium Alloy Friction Stir Welded Joints

2021

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The purpose of the following study was to compare the effect of the shape of a tool on the joint and to obtain the values of Friction Stir Welding (FSW) parameters that provide the best possible joint quality. The material used was an aluminium alloy, EN AW-3004 (AlMn1Mg1). To the authors’ best knowledge, no investigations of this alloy during FSW have been presented earlier. Five butt joints were made with a self-developed, cylindrical, and tapered threaded tool with a rotational speed of 475 rpm. In order to compare the welding parameters, two more joints with a rotational speed of 475 rpm and seven joints with a welding speed of 300 mm/min with the use of a cylindrical threaded pin were performed. This involved a visual inspection as well as a tensile strength test of the welded joints. It was observed that the value of the material outflow for the joints made with the cylindrical threaded pin was higher than it was for the joints made with the tapered threaded pin. However, welding defects in the form of voids appeared in the joints made with the tapered threaded tool. The use of the cylindrical tool resulted in higher values for about 37% of mechanical properties compared with the highest result for the tapered threaded joint. As far as the parameters were concerned, it was concluded that most of the specimens were properly joined for a rotational speed of 475 rpm. In the joints made with a welding speed of 300 mm/min, the material was not stirred properly. The best joint quality was given for a rotational speed of 475 rpm as well as a variety of welding speed values between 150 and 475 mm/min.

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Design of crashworthy attenuator structures as a part of vehicle safety against impact: Application of waste aluminum can-based material

Cited by 4 publications

References 13 publications

Energy Dissipation Enhancement of Thin-Walled 6063 T5 Aluminium Tubes by Combining a Triggering Mechanism and Heat Treatment

Energy Dissipation Enhancement of Thin-Walled 6063 T5 Aluminium Tubes by Combining a Triggering Mechanism and Heat Treatment

Development of impact attenuator analysis tools in crash scenario using Euler method and finite element analysis

The Influence of Tool Shape and Process Parameters on the Mechanical Properties of AW-3004 Aluminium Alloy Friction Stir Welded Joints

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