带有波浪形圆柱体核心的 3D 打印生物启发夹芯板的弯曲性能

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2024-10-13 DOI:10.1016/j.tws.2024.112538

Xindi Yu , Qicheng Zhang , Rodrigo J. da Silva , Tulio Halak Panzera , Mark Schenk , Fabrizio Scarpa

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引用次数: 0

摘要

甲虫伊利特龙板（BEPs）是一种新型仿生物夹层芯材，具有优异的机械性能，其灵感来自甲虫伊利特龙的微观结构。这种夹芯具有六边形中心对称结构，单元格中含有通厚圆柱体。在这项工作中，我们描述了具有波浪形圆柱体的新型 BEP 内核结构的夹芯板在四点弯曲试验中的表现。同时还进行了全尺寸模拟，以验证实验数据。结果表明，所有用粘合剂粘合面皮的夹芯板的材料破坏都早于粘合剂破坏。波浪形圆柱体的 BEP 与直圆柱体的 BEP 相比，峰值载荷更大，而且所有 BEP 的峰值载荷都高于传统六边形蜂窝夹芯板的峰值载荷。此外，与蜂窝夹芯板相比，所有 BEP 都具有更高的延展性。

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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The bending of 3D-printed bio-inspired sandwich panels with wavy cylinder cores

Beetle Elytron Plates (BEPs) represent a new class of biomimetic sandwich cores with excellent mechanical properties inspired by the microstructure of the beetle elytra. The cores have a hexagonal centre-symmetric configuration with through-thickness cylinders in the unit cell. In this work, we describe the behaviour of sandwich panels with novel BEP core configurations possessing wavy cylinders under four-point bending tests. Full-scale simulations are also carried out to validate the experimental data. The results show that all the sandwich panels produced with face skins adhesively bonded have material failure earlier than the adhesive bond failure. BEPs with wavy cylinders have larger peak loads compared to those with straight cylinders, and all BEPs show higher peak loads than those of sandwich panels with classical hexagonal honeycombs. Additionally, all the BEPs exhibit an enhanced ductility compared to honeycomb sandwich panels.

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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.