Investigation of Microstructure-Property Relations in Solid Foams and Lattice Structures

添加剂制造工艺的快速发展为多孔固体开辟了新的视野，因为它使得在介观长度尺度上制造任意材料组成的部件和内部微结构成为可能。为了充分发挥蜂窝状固体所具有的潜力，挑战在于对蜂窝状固体中的属性-拓扑关系进行稳健的理解和建模，并确定独立的蜂窝状拓扑参数对整体力学响应的影响。该项目的目标是通过建立强大的科学知识库和数学框架来模拟细胞固体中的拓扑-力学行为关系，特别强调细胞拓扑、屈服面和动态响应之间的相互作用，来弥合在功能优化的细胞结构设计中出现的这一差距。这一目标将通过一个多方面的研究计划来实现，该计划集成了制造、实验、计算和分析建模组件。作为该项目的一部分，将启动一个教育推广计划，通过让高中生接触先进研究的迷人方面及其对我们日常生活的影响，来激发他们对工程和科学的好奇心和热情。还将建立一个网站，作为关于细胞固体的科学和技术方面的信息门户，向全国更广泛的研究生和本科生传播知识并促进他们的兴趣。

Rapid progress in additive manufacturing processes opens new horizons for cellular solids as it makes possible to fabricate parts of any arbitrary material composition and internal micro-architectures at mesoscopic length scale. In order to realize the full potential of what cellular solids have to offer, the challenge is to develop a robust understanding and modeling of property-topology relationships in cellular solids, and identify the influence of the independent parameters of cellular topology on overall mechanical response. The objective of this project is to bridge this emerging gap in the design of functionally optimized cellular structures by developing a strong scientific knowledge base and mathematical framework to model topology-mechanical behavior relationship in cellular solids with particular emphasis on the interaction between cellular topology, yield surfaces and dynamic response. This objective will be achieved by a multi-faceted research program that integrates manufacturing, experimental, computational and analytical modeling components. As part of the project, an educational outreach program will be initiated to stimulate the curiosity and enthusiasm of high school students towards engineering and sciences by exposing them to the fascinating aspects of advanced research and its impact on our everyday lives. A website will also be established to serve as an information portal on the scientific and technological aspects of cellular solids for the dissemination of knowledge to and promotion of interest in a broader body of graduate and undergraduate students nationwide.