Crashworthiness characteristics of composite cylindrical energy absorbers filled with honeycomb and foam under quasi-static load: experimental and analytical study

Sarkhosh, R.; Farrokhabadi, Amin; Zarei, Hamid Reza

doi:10.1007/s40430-022-03662-0

Cited by 7 publications

(3 citation statements)

References 47 publications

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“…Crashworthy devices should have a narrow maximum size to reduce the volume of the navigable water they occupy. One key strategy for improving the energy absorption is to fill the interior of the tube with materials such as aluminum foam and polyurethane (PU) [ 11 , 12 ] (as shown in Figure 1 ). Rogala et al [ 13 ] investigated the mechanical properties of aluminum porous structure using static axial compression tests and found that aluminum foam is a better energy absorber.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Dynamic Responses of Thin-Walled and Foam-Filled Steel Tubes Subjected to Repeated Impacts

Ge,

Luo,

Qiu

2024

Materials

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In this study, a horizontal impact setup was used to measure the dynamic responses of specimens fixed on a reaction wall and subjected to repeated impacts generated by a large-tonnage impactor. The contact force, deformation process, energy absorption, and other properties of two specimens (a thin-walled steel tube and foam-filled steel tube) were thoroughly investigated. The results demonstrated that the thin-walled tube’s properties were consistent with the four-phase and six-phase deformation models and that the foam-filled tube’s properties were consistent with the two-phase deformation model. In the early stages of the experiment, the foam-filled and thin-walled tubes were similar in terms of the contact force and energy absorption. However, when the polyurethane (PU) strain reached 0.8, the PU significantly increased the support of the tubes, reduced the contact force (by extending the contact time), and increased the energy absorption capacity by 33.6–43.5%. The crush curves of the specimens were in agreement for cases involving multiple impacts, as well as for one impact with the same impact of kinetic energy. The crush curves can be used to assess the actual performance of crashworthy devices. Furthermore, after repeated impacts, the foam-filled tube exhibited a pseudo-shakedown behavior.

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Section: Introductionmentioning

confidence: 99%

Experimental Investigation of the Dynamic Responses of Thin-Walled and Foam-Filled Steel Tubes Subjected to Repeated Impacts

Ge,

Luo,

Qiu

2024

Materials

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show abstract

“…The main material used to create this structure was 316L standard-grade stainless steel powder (022Cr17Ni12Mo2), which was 3D printed. Hashemi and Galehdari [25] used 3D printing to create a calibrated honeycomb-shaped energy absorber using Polylactic acid. Zhang et al [26] introduced an energy absorber designed based on the structure of the dichotoma beetle.…”

Section: Introductionmentioning

confidence: 99%

“…Using the Markforged Nylon material and fused filament fabrication technique, Khoa et al [27] presented bioinspired cellular architectures that resemble the femur bones. Sarkhosh et al [25] manufactured a honeycomb-shaped energy absorber with an E-glass fiber plane woven (MW-200) and polyester resin using the winding process. Xin et al [28] utilized a discontinuous and interdigitated nacreinspired structure to design an energy absorber using a carbon/epoxy composite.…”

Section: Introductionmentioning

confidence: 99%

Bio-inspired Thin-Walled Energy Absorber Adapted from the Xylem Structure for Enhanced Vehicle Safety

Saber,

Güler,

Altin

et al. 2024

Preprint

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Throughout evolution, plants and animals have optimized their structure to thrive in a wide range of extreme environments, offering natural structures with both low mass and high energy absorption capacities. Vascular plants have developed a specialized tissue known as the Xylem, which offers structural support and facilitates the transport of water, mineral nutrients, and signals throughout the plant. This study aims to enhance the crashworthiness of vehicles by adapting the Xylem structure to design an effective bioinspired thin-walled structure. Several different crash tube configurations are considered first and their crashworthiness performances are assessed based on two different metrics: specific energy absorption , and crush force efficiency , which are determined by using the Finite Element Analysis (FEA) software LS-DYNA. Then, the crash tube configuration with the best performance is chosen for further investigation. A surrogate-based optimization study is performed, and it is found that and are improved by 151% and 113% compared to an empty circular thin-walled crash tube. Furthermore, the simplified super folding element theory has been used for building a theoretical model that predicts the mean crushing force of the Xylem-mimicking structure. The simulation results and calculated values show a strong agreement, indicating that the proposed theoretical model is of high accuracy.

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Crashworthiness evaluation of hybrid tubes made of GFRP composite and aluminum tubes filled with honeycomb structures

Mert

Güler

Altın

et al. 2023

J Braz. Soc. Mech. Sci. Eng.

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Crashworthiness characteristics of composite cylindrical energy absorbers filled with honeycomb and foam under quasi-static load: experimental and analytical study

Cited by 7 publications

References 47 publications

Experimental Investigation of the Dynamic Responses of Thin-Walled and Foam-Filled Steel Tubes Subjected to Repeated Impacts

Experimental Investigation of the Dynamic Responses of Thin-Walled and Foam-Filled Steel Tubes Subjected to Repeated Impacts

Bio-inspired Thin-Walled Energy Absorber Adapted from the Xylem Structure for Enhanced Vehicle Safety

Crashworthiness evaluation of hybrid tubes made of GFRP composite and aluminum tubes filled with honeycomb structures

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