Establishing a Design Framework for Multi-functional composites by Leveraging Kirigami Cutting, Multi-stability, and Multi-level Optimization

利用 Kirigami 切割、多稳定性和多级优化建立多功能复合材料的设计框架

• 批准号: 1760943
• 负责人: Suyi Li
• 金额: $ 71.52万
• 依托单位: Clemson University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-09-15 至 2022-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1760943&HistoricalAwards=false
• 关键词: Establishing; Design; Framework; Multi; functional

This award supports fundamental research to establish a design methodology for composite structures by taking advantage of Kirigami cutting principles and snap-through multi-stability. Composite structures combine multiple materials to achieve desirable properties and are vital for many engineering systems. Snap-through multi-stable structures can quickly transition from one stable state to another. They can bear weight and perform other functions such as shape morphing, vibration control, and energy harvesting. However, the current-state-of-art in multi-stable composites is limited in terms of the achievable shapes and functionalities. This research uses Kirigami cutting principles to fundamentally expand the performance space of multi-stable composites. The design methodology synergizes with advanced layer-by-layer manufacturing technology, enabling a two-dimensional build to transform into a complex three-dimensional structure through the optimal design of fiber ply properties and Kirigami-inspired cutting patterns. This will lead to novel structural designs that offer sophisticated functionalities, such as shape reconfiguration and on-demand mechanical property programming. These structures can benefit a number of industries, including aerospace, automotive, and robotics, by enhancing system performance and sustainability. This award will also support efforts to enhance educational activities at Clemson University and nearby communities in South Carolina. Research results will be used in existing outreach networks like Clemson EMAG!NE to inspire the public via combining engineering and the art of Kirigami paper cutting.This research will, for the first time, systematically incorporate the Kirigami cutting principle in an engineering-relevant optimal design framework. It is expected to create significant leaps in adaptive composites, Kirigami applications, and multi-level, multi-objective design optimization. The research goals will be achieved by 1) deriving mathematical linkages between design variables and performance outputs via a new reduced-order mechanics model using F?ppl-von K?rm?n (FvK) shell theory and customized shape functions; 2) developing practical design guidelines and constraints via extensive experimental testing; and 3) deriving multi-disciplinary synthesis method based on bi-level optimization. Results of the three tasks will be integrated into the design framework. Throughout the course of this project, the research team will address many technical challenges with broad relevance, including the complex non-free boundaries between composite patches, fabrication uncertainties, and robustness in multi-level design optimization.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该奖项支持基础研究，通过利用Kirigami切割原理和多稳定性来建立复合材料结构的设计方法。 复合材料结构联合收割机将多种材料结合起来以获得理想的性能，并且对于许多工程系统至关重要。快通多稳态结构可以快速地从一个稳态过渡到另一个稳态。它们可以承受重量并执行其他功能，如形状变形，振动控制和能量收集。 然而，多稳态复合材料的当前技术水平在可实现的形状和功能方面受到限制。 本研究利用Kirigami切削原理，从根本上拓展了多稳态复合材料的性能空间。该设计方法与先进的逐层制造技术协同作用，通过对纤维层特性和Kirigami灵感切割模式的优化设计，使二维构建能够转化为复杂的三维结构。这将导致新的结构设计，提供复杂的功能，如形状重新配置和按需机械性能编程。这些结构可以通过提高系统性能和可持续性使许多行业受益，包括航空航天，汽车和机器人。 该奖项还将支持努力加强克莱姆森大学和附近社区在南卡罗来纳州的教育活动。研究成果将用于现有的外展网络，如克莱姆森埃马克！NE通过将工程与Kirigami剪纸艺术相结合来激励公众。这项研究将首次系统地将Kirigami剪纸原理纳入与工程相关的最佳设计框架中。 预计它将在自适应复合材料、Kirigami应用以及多层次、多目标设计优化方面实现重大飞跃。 研究目标将通过以下方式实现：1）通过一个新的降阶力学模型，使用F？冯·K rm？n（FvK）壳理论和自定义形状函数; 2）通过广泛的实验测试开发实用的设计准则和约束; 3）推导基于双层优化的多学科综合方法。 这三项任务的结果将纳入设计框架。 在整个项目过程中，研究团队将解决许多具有广泛相关性的技术挑战，包括复合材料贴片之间复杂的非自由边界、制造不确定性和多级设计优化的鲁棒性。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

An Experimental Investigation of Combined Symmetric-Asymmetric Composite Laminates

组合对称-非对称复合材料层压板的实验研究

• DOI: 10.3390/jcs3030071
• 发表时间: 2019
• 期刊: Journal of Composites Science
• 影响因子: 3.3
• 作者: Kemmann, Guy;Myers, Oliver
• 通讯作者: Myers, Oliver

Defining relationships between geometry and behavior of bistable composite laminates

定义双稳态复合材料层压板的几何形状和行为之间的关系

• DOI: 10.1177/00219983211005824
• 发表时间: 2021
• 期刊: Journal of Composite Materials
• 影响因子: 2.9
• 作者: Phatak, Salil;Myers, Oliver J;Li, Suyi;Fadel, George
• 通讯作者: Fadel, George

Transient deformation and curvature evolution during the snap-through of a bistable laminate under asymmetric point load

• DOI: 10.1016/j.compscitech.2021.108871
• 发表时间: 2021-05-24
• 期刊: COMPOSITES SCIENCE AND TECHNOLOGY
• 影响因子: 9.1
• 作者: Deshpande, Vishrut;Myers, Oliver;Li, Suyi
• 通讯作者: Li, Suyi

Tunable Wave-Propagation Band gap via Stretching Kirigami Sheets

• DOI: 10.1103/physrevapplied.17.064054
• 发表时间: 2021-11
• 期刊: Physical Review Applied
• 影响因子: 4.6
• 作者: H. Khosravi;Suyi Li

Transverse Wave Propagation Bandgap in a Buckled Kirigami Sheet

屈曲剪纸片中的横向波传播带隙

• DOI: 10.1115/smasis2021-68200
• 发表时间: 2021
• 期刊: Adaptive Structures and Intelligent Systems
• 作者: Khosravi, Hesameddin;Li, Suyi
• 通讯作者: Li, Suyi