Energy absorption of Kresling pattern thin-walled structures with pre-folded patterns and graded stiffness

IF 3.4 3区 工程技术 Q1 MECHANICS International Journal of Solids and Structures Pub Date : 2024-09-06 DOI:10.1016/j.ijsolstr.2024.113057
Xiaolei Wang , Haibo Qu , Buqin Hu , Haoqian Wang , Wenju Liu , Sheng Guo
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Abstract

Traditional thin-walled structures are widely employed in several energy-absorbing engineering fields, and origami patterns inspire novel structures with unique functionalities in this area. In this study, we explore energy-absorbing effects of origami-inspired thin-walled structures from perspective of the predicted stability of the Kresling origami. Our research utilizes finite element analysis and experimental validation to evaluate and contrast the energy-absorbing effects of the Kresling origami-inspired thin-walled structures (KOI-TWSs) with a traditional hexagonal thin-walled structure (HTWS). The results indicate that introducing the Kresling origami pattern into the thin-walled structure to obtain geometric defects (pre-folded pattern) and graded stiffness, and their effects are reflected in improving the buckling deformation stability or reducing the initial peak force. These effects depend on the predicted stability of the Kresling origami and are intuitively reflected in the geometric parameters. On the other hand, the reusability of materials is worth considering for improving the energy absorption of the thin-walled structures. These works provide new contents and perspectives for the KOI-TWSs.

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具有预折叠图案和分级刚度的克瑞斯林图案薄壁结构的能量吸收
传统的薄壁结构被广泛应用于多个吸能工程领域,而折纸图案则激发了该领域具有独特功能的新型结构。在本研究中,我们从 Kresling 折纸的预测稳定性角度出发,探讨了折纸启发薄壁结构的吸能效果。我们的研究利用有限元分析和实验验证来评估和对比克瑞斯林折纸启发薄壁结构(KOI-TWSs)与传统六边形薄壁结构(HTWS)的能量吸收效果。结果表明,在薄壁结构中引入克瑞斯林折纸图案可获得几何缺陷(预折叠图案)和分级刚度,其效果体现在提高屈曲变形稳定性或降低初始峰值力上。这些效果取决于克瑞斯林折纸的预测稳定性,并直观地反映在几何参数中。另一方面,材料的可重复使用性也值得考虑,以提高薄壁结构的能量吸收能力。这些工作为 KOI-TWS 提供了新的内容和前景。
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来源期刊
CiteScore
6.70
自引率
8.30%
发文量
405
审稿时长
70 days
期刊介绍: The International Journal of Solids and Structures has as its objective the publication and dissemination of original research in Mechanics of Solids and Structures as a field of Applied Science and Engineering. It fosters thus the exchange of ideas among workers in different parts of the world and also among workers who emphasize different aspects of the foundations and applications of the field. Standing as it does at the cross-roads of Materials Science, Life Sciences, Mathematics, Physics and Engineering Design, the Mechanics of Solids and Structures is experiencing considerable growth as a result of recent technological advances. The Journal, by providing an international medium of communication, is encouraging this growth and is encompassing all aspects of the field from the more classical problems of structural analysis to mechanics of solids continually interacting with other media and including fracture, flow, wave propagation, heat transfer, thermal effects in solids, optimum design methods, model analysis, structural topology and numerical techniques. Interest extends to both inorganic and organic solids and structures.
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