Axial crushing behavior of metal chip-filled thin-walled tubes: experiments and simulations

IF 8.3 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2026-05-01 Epub Date: 2026-02-19 DOI:10.1016/j.tws.2026.114694

Jielin Liu, Yanshan Lou

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引用次数: 0

Abstract

Improving the crashworthiness of thin-walled structures while controlling material cost is increasingly important for large-scale engineering applications. This study investigates the use of recycled machining chips as a low-cost and sustainable filler for enhancing the energy absorption of thin-walled tubes. Axial compression tests were conducted on both hollow tubes and chip-filled tubes. The chip-filled configuration achieved a 58% increase in energy absorption compared with the hollow tube, without raising the initial peak crushing force. An engineering equivalent, density-dependent modeling approach was proposed to describe the macroscopic behavior of the metal chip filler. Based on this method, a numerical model of the chip-filled tube was established. Its predicted crushing response agrees with the experimental results, with the error in energy absorption below 5.5%. Overall, the results demonstrate that recycled metal chips provide a cost-effective and practical means of improving thin-walled structural crashworthiness, and the proposed modeling approach offers a practical tool for the design and optimization of chip-filled energy-absorbing components.

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金属薄片填充薄壁管的轴向破碎行为：实验与模拟

在控制材料成本的同时提高薄壁结构的耐撞性对大规模工程应用越来越重要。本研究探讨了利用回收加工芯片作为一种低成本和可持续的填料，以提高薄壁管的能量吸收。对空心管和填片管进行了轴压试验。与空心管相比，芯片填充结构的能量吸收增加了58%，而初始峰值破碎力没有提高。提出了一种工程等效的、密度相关的建模方法来描述金属切屑填料的宏观行为。在此基础上，建立了芯片填充管的数值模型。其预测的破碎响应与实验结果吻合，能量吸收误差在5.5%以下。总体而言，结果表明，回收金属芯片提供了一种经济实用的改善薄壁结构耐撞性的手段，所提出的建模方法为芯片填充吸能部件的设计和优化提供了实用的工具。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.