Theoretical estimation of axial crushing behavior of multicell hollow sections

Malekshahi, Ahmad; Hosseini, Mohammad; Ansari, Abdulhamid N. M.

doi:10.1080/15397734.2020.1776133

Cited by 12 publications

(2 citation statements)

References 45 publications

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“…For the sake of further elevating the energy absorption performance of thin-walled structure, the design concept of a multi-wall element is used to enhance the crashworthy capability of thin-walled structures, which has a simpler fabrication process and provides better weight efficiency than adding foam and inner tube [15][16][17]. Kim et al [18] revealed that multi-walled tubes exhibited a marked improvement in collision energy absorption and weight efficiency compared to traditional single tubes.…”

Section: Introductionmentioning

confidence: 99%

Effects of Temperature on Axial Crushing Behavior of Circular Multi-Walled Tubes

Zhang,

Feng,

Wang

et al. 2023

Metals

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In this work, the impact of temperature on the crushing performance of multi-walled tube (MWT) were investigated using a combined experimental, theoretical and numerical method. The MWT was fabricated using extrusion technology, and the temperature-dependent axial crushing experiment was performed on a hydraulic testing machine. The results show that the peak crushing force (PCF), the mean force (Pm) and the specific energy absorption (SEA) decreased near-linearly by 21.7%, 30.7% and 30.7% as the temperature increased from 25 °C to 250 °C, while the crushing load efficiency (CLE) was insensitive to temperature. The average forces obtained via numerical prediction, theoretical analysis and experimental testing were basically consistent. The numerical results indicate that varied temperature alters the number of dominant wavelets and the relative lateral deflections of MWT. In addition, compared with the competitive structures, the energy absorption property of MWT is excellent at high temperatures.

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Section: Introductionmentioning

confidence: 99%

Effects of Temperature on Axial Crushing Behavior of Circular Multi-Walled Tubes

Zhang,

Feng,

Wang

et al. 2023

Metals

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“…The result shows that the experiment and simulation agree well and the novel approach has a wide application value. 23 Mahmoud and Ahmed proposed a new technique of blending one kind of fiber-reinforced composite material to the conventional aluminum thin-walled tube. The energy absorption characteristics of the hybrid tube can be improved by this technique, and the energy absorption ability of the mixing tube are higher than that of the single aluminum tube.…”

Section: Introductionmentioning

confidence: 99%

Energy absorption characteristic of bionic lightweight protective structure with curved tubes under impact loading

Hao

Xie

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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Reinforcing and toughening materials with light quality in engineered structures remains a challenge. In the biological tissues of numerous animal and plant species, efficient strategies have evolved to construct structures that have excellent mechanical properties. As a kind of biological structure with high-strength fiber, beetle elytron not only provides protection function for beetles, but also makes beetles light enough to obtain good flight ability. Because of these advantages of inner fibrous structure of elytron, the bionic investigation of beetle elytron has gradually become one of the research focuses in civil engineering and automobile anti-collision fields. In the present work, the honeycomb and tubes composed of fiber in the beetle elytra was analyzed, and a variety of bionic thin-walled honeycomb structures with curved hollow tubes were designed and modeled. The energy absorption ability of the bionic honeycomb structures with different types of tubes under impact loading were calculated by finite element software. The internal energy values and collapse processes of bionic structures were compared and analyzed at different crushing displacements. The parameter study, including wall thickness and impact angle, was carried out in the collapse time range from 0 ms to 8 ms. These results could be applied in developing crush-resistant materials in the field of automotive passive safety.

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On crashworthiness behaviors of 3D printed multi-cell filled thin-walled structures

Wang

Liu

Wang

et al. 2022

Engineering Structures

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Theoretical estimation of axial crushing behavior of multicell hollow sections

Cited by 12 publications

References 45 publications

Effects of Temperature on Axial Crushing Behavior of Circular Multi-Walled Tubes

Effects of Temperature on Axial Crushing Behavior of Circular Multi-Walled Tubes

Energy absorption characteristic of bionic lightweight protective structure with curved tubes under impact loading

On crashworthiness behaviors of 3D printed multi-cell filled thin-walled structures

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