分段变刚度双稳态混合层合板的变形特性

IF 7.1 2区 材料科学 Q1 MATERIALS SCIENCE, COMPOSITES
Zheng Zhang , Jiayang Zhao , Min Sun , Guang Zhang , Dongyi Li , Shaofei Jiang
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引用次数: 0

摘要

传统的机械执行器由于其高复杂性和高成本,在航空航天和自适应建筑应用中受到限制。变形结构以其优越的适应性和变形能力越来越受到人们的关注。在本研究中,通过将分段设计和混合变刚度层引入到反对称层压板中,开发了一种新的热响应双稳态结构。系统地研究了常用金属材料、杂化层宽度和金属层厚度对双稳态层合板的稳定结构、断裂行为和驱动特性的影响。实验和数值结果表明,分段变刚度层的加入显著提高了结构的双稳特性。此外,通过利用层压板稳定结构和边缘效应之间的势能差,实现了自适应和主动控制的结合。本研究为推进双稳结构在工程上的应用提供了有希望的启示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Morphing characteristics of segmented variable stiffness bistable hybrid laminates
Conventional mechanical actuators are limited in aerospace and adaptive architecture applications due to their high complexity and cost. Morphing structures, with their superior adaptability and morphing capabilities, have attracted increasing attention. In this study, a novel thermally responsive bistable structure is developed by introducing a segmented design and hybrid variable stiffness layers into the antisymmetric laminate. The effects of commonly used metal materials, hybrid layer width, and metal layer thickness on the stable configurations, snap behavior, and actuation characteristics of the bistable laminate are systematically investigated. Experimental and numerical results indicate that the incorporation of segmented variable stiffness layers significantly enhances the structural bistable characteristics. Furthermore, by leveraging the potential energy difference between stable configurations and the edge effects of the laminate, a combination of adaptive and active control is achieved. This study offers promising implications for advancing bistable structures in engineering applications.
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来源期刊
Composite Structures
Composite Structures 工程技术-材料科学:复合
CiteScore
12.00
自引率
12.70%
发文量
1246
审稿时长
78 days
期刊介绍: The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.
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