Collaborative Research: Damage Tolerant 3-D Periodic Interpenetrating Phase Composites with Enhanced Mechanical Performance - Design, Fabrication, Analysis and Testing

该奖项的研究目标是通过设计、制造、分析和实验相结合的综合方法，研究具有增强机械性能（包括刚度、强度、抗冲击性、韧性、能量耗散和损伤容限）的高性能碳-聚合物周期性互穿相复合材料（IPCs）。基于三周期最小表面和三维微桁架的几何结构将用于优化设计所提出的IPCs的微观结构，并将采用三维直写打印技术来制造它们。将开发分析和计算微观力学模型来模拟IPCs，并将进行各种测试来表征制造的IPCs并验证所提出的模型。预计这项研究的结果将为工程和定制ipc提供指导，以实现优化的性能。这项研究的成功完成将导致新的结构-性能-功能关系，这是实现新的和改进的IPCs机械性能所需要的，从而大大提高了我们目前对IPCs机械性能增强的理解。拟议的项目将展示设计材料的现代概念。它将提供一个未来复合材料技术的例子。本项目产生的研究方法、工具和结果将被记录下来，并用于改进本科和研究生课程，这将使工程专业的学生能够使用尖端的研究设施并获得新知识。综合教育计划将大大提升学生的学习体验，挑战他们的求知欲，并激励他们从事研究和教育事业。新的发现将在互联网上公布，并通过外展活动提供给K-12学生。

The research objective of this award is to study high-performance carbon-polymer periodic interpenetrating phase composites (IPCs) with enhanced mechanical properties (including stiffness, strength, impact resistance, toughness, energy dissipation, and damage tolerance) through an integrated approach combining design, fabrication, analysis and experiment. Geometries based on triply periodic minimal surfaces and 3-D microtrusses will be used to optimally design microstructures of the proposed IPCs, and 3-D direct-write printing technologies will be employed to fabricate them. Analytical and computational micromechanics models will be developed to simulate the IPCs, and various tests will be conducted to characterize the fabricated IPCs and to validate the proposed models. It is anticipated that the findings of this proposed research will provide guidelines for engineering and tailoring IPCs to achieve optimized properties. The successful completion of the proposed research will lead to new structure-property-function relationships needed for achieving new and improved mechanical properties of IPCs, thereby significantly improving our current understanding of IPCs with enhanced mechanical performance. The proposed project will provide a demonstration of the modern concept of materials-by-design. It will offer an example of futuristic composite material technology. The research methodology, tools, and results generated in this project will be documented and used to improve both undergraduate and graduate curricula, which will enable engineering students to access cutting-edge research facilities and acquire new knowledge. The integrated educational plan will greatly enhance the students' learning experience, challenge their intellectual curiosity and motivate them to pursue careers in research and education. New findings will be made available on the Internet and to K-12 students through outreach activities.