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: 2240326
• 负责人: Suyi Li
• 金额: $ 71.52万
• 依托单位: Virginia Polytechnic Institute and State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-07-15 至 2023-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2240326&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.

该奖项支持基本研究，以利用Kirigami削减原则和快速到达多稳定性来建立复合结构的设计方法。 复合结构结合了多种材料以获得理想的特性，对于许多工程系统至关重要。快速直通的多稳定结构可以快速从一个稳定状态过渡到另一个稳定状态。它们可以承受重量并执行其他功能，例如形状变形，振动控制和能量收获。 但是，在可实现的形状和功能方面，多稳定复合材料中的当前战场受到限制。 这项研究使用基里加米切割原理来从根本上扩大多稳定复合材料的性能空间。设计方法与高级逐层制造技术协同作用，使二维构建通过纤维层性能和基里加米 - 启发的切割模式的最佳设计转变为复杂的三维结构。这将导致新颖的结构设计，这些设计具有复杂的功能，例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来使许多行业，包括航空航天，汽车和机器人技术受益。 该奖项还将支持在克莱姆森大学和南卡罗来纳州附近社区增强教育活动的努力。研究结果将用于Clemson emag！ne等现有外展网络，以通过结合工程学和基里加米纸切割的艺术来激发公众。这项研究将首次系统地将基里加米切割原理纳入与工程相关的最佳设计框架中。 预计将在自适应复合材料，基里加米应用程序和多级，多目标设计优化中产生重大飞跃。 研究目标将通过1）通过F？ppl-von k？rm？n（fvk）壳理论和定制形状函数来实现设计变量与性能输出之间的数学联系； 2）通过广泛的实验测试制定实践设计指南和约束； 3）基于双层优化的多学科合成方法。 这三个任务的结果将集成到设计框架中。 在整个项目的整个过程中，研究团队将以广泛的相关性来应对许多技术挑战，包括复合贴片，制造不确定性和多级设计优化的鲁棒性之间的复杂非免费界限。该奖项反映了NSF的法定任务，并通过基金会的知识优点和广泛的影响来评估NSF的法定任务，并被认为是值得的。

项目成果

Fatigue analysis of bistable composite laminate

• DOI: 10.1115/smasis2022-90215
• 发表时间: 2022-01-01
• 期刊: ASME 2022 C SMART MA
• 作者: Chowdhury, S.A.;Li, S.;Myers, O.J.
• 通讯作者: Myers, O.J.

Phononic Bandgap Programming in Kirigami By Unique Mechanical Input Sequencing

• DOI: 10.1002/admt.202202129
• 发表时间: 2023-04-04
• 期刊: ADVANCED MATERIALS TECHNOLOGIES
• 影响因子: 6.8
• 作者: Khosravi，Hesameddin;Li，Suyi
• 通讯作者: Li，Suyi

Fatigue performance evaluation of bistable composites at different combinations of loading and environmental conditions

• DOI: 10.1177/00219983231207156
• 发表时间: 2023-10
• 期刊: Journal of Composite Materials
• 影响因子: 2.9
• 作者: Shoab Ahmed Chowdhury;Suyi Li;Oliver Myers