The crashworthiness design of metal/CFRP hybrid tubes based on origami-ending approach: Experimental research

Ming, Shizhao; Song, Zhibo; Zhou, Chuanli; Du, Kaifan; Teng, Chenghao; Wang, Yan; Xu, Shengli; Wang, Bo

doi:10.1016/j.compstruct.2021.114843

Cited by 39 publications

(8 citation statements)

References 58 publications

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“…[15] Extensive research works have been conducted on metal/composite hybrid structures. [16][17][18] For engineering wants as assembly and for dropping the weight, introducing cutouts or holes in crashworthy components' walls is suggested. [19] These induced cutouts or holes have undesirable effects on the absorbed energy.…”

Section: Introductionmentioning

confidence: 99%

Metal/polymer composite cylinders for crash energy absorption applications

et al. 2022

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The crashworthiness performance and the deformation history of glass fiber reinforced epoxy (GFRP) composite over wrapped aluminum (Al) cylinders with induced holes were experimentally studied. Specimens were fabricated using wet wrapping by hand lay-up process and tested under quasi-static axial compression. Crashworthiness indicators that is, the initial peak load F ip À Á , mean crush load (F m ), total absorbed energy (UÞ, specific absorbed energy (SEA), and crush force efficiency (CFE) of the proposed cylinders were evaluated. The influence of the number of GFRP plies (P), the diameter (d), and number (N) of induced holes on the crashworthiness performance and the deformation history has also been identified. The experimental outcomes showed that the studied parameters have a significant effect on the crashworthiness performance and the deformation history. Increasing "P" increases F ip , F m , U, and CFE while decreasing SEA. Inducing holes with "d" up to 8 mm reduces F ip , F m , U, SEA, and CFE of GFRP/Al cylinders. After that the trend is reversed for all indicators except for F ip . GFRP/Al cylinders with "N = 2" exhibits lower F ip and higher F m , U, SEA, and CFE than cylinders with "N = 1". Hybridization process and inducing holes could alter Al-cylinders' failure mechanism. The relation between the crashworthiness indicators and the studied parameters has been constructed by response surface methodology (RSM) to be used by the engineering designers. Al-P6-d12-N2 is recommended to be used in crash energy absorption applications that is, energy absorbing device in vehicles.

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Section: Introductionmentioning

confidence: 99%

Metal/polymer composite cylinders for crash energy absorption applications

et al. 2022

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“…Katlanmanın kontrollü bir şekilde gerçekleştirilebilmesi için origamiden esinlenilmiş, ön-katlanmış çarpışma kutuları da oluşturulabilir [69][70][71][72][73][74][75][76][77][78]. Zhou ve ark.…”

Section: Geometriunclassified

A review of performance improvement approaches on crash boxes

ATEŞ¹,

Bakırcı

Günaydın³

et al. 2022

Balıkesir Üniversitesi Fen Bilimleri Enstitüsü Dergisi

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Kaza anında araçların hızları ve kütleleri sebebiyle yüksek miktarda enerji açığa çıkmakta ve bu enerjinin uygun şekilde sönümlenmesi gerekmektedir. Düzgün sönümlenemeyen enerji iç parçalara, sürücüye ve yolculara zarar verecek kuvvetlerin oluşmasına sebep olarak hayati sorunlara yol açar. Araçlarda bu sönümlemeyi yapabilmek için devletlerin, kurumların ve sigorta şirketlerinin öne sürdüğü kriterleri karşılayabilecek özel tasarlanmış çarpışma kutusu adındaki parçalara ihtiyaç duyulmaktadır. Sürdürülebilirlik, çevre, yakıt tasarrufu gibi kavramlarla beraber araçlarda hafifliğin ön plana çıkması ve artan rekabet, kaza dışında âtıl duran çarpışma kutuları üzerinde önemli çalışmalara yol açmıştır. Bu nedenlerle, çarpışma kutularının kinetik enerjiyi emme performansı, üretilebilirliği, maliyeti, hafifliği göz önünde bulundurularak uygun seçimler yapılmalıdır. Bu çalışma, çarpışma kutusunun performansını artırıcı temel faktörleri ele alan kapsamlı bir literatür araştırmasını içermektedir. Çalışmada, çarpışma kutularının enerji sönümleme yeteneği; geometri, malzeme ve dolgu gibi üç temel başlık altında ele alınmıştır. Bu kapsamda, literatürdeki çalışmalar incelenerek çarpışma kutuları ile gerçekleştirilen enerji emilimi konusundaki önemli noktalar derlenmiştir.

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“…Additional studies related to the axial and bending crashworthiness of CFRP/aluminum hybrid circular and square hollow section tubes can be found in Refs. [19][20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical investigation on the crashworthiness performance of double hat‐section Al‐CFRP beam subjected to quasi‐static bending test

Bidadi,

Hampaiyan Miandowab,

Saeidi Googarchin

et al. 2024

Polymer Composites

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Nowadays, hybrid structures, which combine low‐density composites with low‐cost thin‐walled metals, have shown great effect in enhancing the performance of automotive body structures, especially the energy absorber components. This study focuses on the experimental and numerical investigation of the bending energy absorption behavior of CFRP/aluminum hybrid double hat‐section beams used in the side part of the car body. In the experimental section, two types of double hat‐section beams were fabricated: aluminum and Al/CFRP. These beams were then subjected to quasi‐static three‐point bending tests. The results demonstrated that the hybrid beam exhibited superior energy absorption capabilities compared to the single beam. Subsequently, a finite element model was developed using LS‐Dyna software and was validated by comparing the experimental and numerical load–displacement results. In‐depth numerical analyses were conducted to investigate the influence of various design parameters, including CFRP‐reinforcement configuration, numbers of CFRP layers, CFRP ply‐angle, CFRP reinforced length, and aluminum/CFRP mass, on crashworthiness indicators. The numerical findings indicate that the hybrid beam with , ply‐angles exhibited better crash force efficiency (CFE) and specific energy absorption (SEA) compared to other ply‐angles, respectively. Furthermore, increasing the number of CFRP layers within the total beam's mass improved its energy absorption capacity. It was also revealed that the CFRP length on the upper and lower hats could be considered as 42.5% of the total aluminum beam length, as opposed to the full CFRP length, providing enhanced energy absorption capabilities.Highlights Bending behavior of the Al and Al/CFRP double hat section beams. Effects of variable thickness and identical mass on the double hat section beam. Effects of variable ply angle and number of CFRP layers on the hybrid beams. Discrete effect of CFRP reinforcement configurations and inner CFRP lengths.

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The crashworthiness design of metal/CFRP hybrid tubes based on origami-ending approach: Experimental research

Cited by 39 publications

References 58 publications

Metal/polymer composite cylinders for crash energy absorption applications

Metal/polymer composite cylinders for crash energy absorption applications

A review of performance improvement approaches on crash boxes

Experimental and numerical investigation on the crashworthiness performance of double hat‐section Al‐CFRP beam subjected to quasi‐static bending test

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