Swelling-Induced Origami

肿胀引起的折纸

• 批准号: 1300860
• 负责人: Douglas Holmes
• 金额: $ 12万
• 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: 2013
• 资助国家: 美国
• 起止时间: 2013-03-01 至 2016-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1300860&HistoricalAwards=false
• 关键词: Swelling; Induced; Origami

The research objective of this award is to utilize the swelling-induced deformations of soft mechanical structures to dynamically shape materials. Adaptive structures that can bend and fold in an origami-like manner provide advanced engineering opportunities for deployable structures, soft robotic arms, mechanical sensors, and rapid-prototyping of 3D elastomers. Swelling is a robust approach to structural change as it occurs naturally in humid environments, and can easily be adapted into industrial design. Studies conducted under this award will identify the materials-defined length scales that dictate the mechanical response of a swelling structure. The swelling-structure interactions will be coupled with appropriate materials to controllably morph structures into a desired shape. The incorporation of polymerizable swelling materials will allow these complex shapes to be permanently fixed, thereby controlling the morphology of structures across many length scales. A successful study will have broad implications for hierarchical manufacturing. The knowledge gained from these efforts will further the fundamental mechanical understanding of transient swelling-induced deformations, while developing a methodology for the permanent morphing of three-dimensional soft structures. This research will support the involvement of a strong, creative Ph.D. candidate, as well as academically driven undergraduate researchers. In addition to impacting education at the university level, this project will develop an innovative program to introduce local high school students to mechanics-driven phenomena. The program will use high-speed photography to show students the world of fast-moving science, and use this technology to study Newton's laws of motion.

该奖项的研究目标是利用软机械结构的膨胀引起的变形来动态塑造材料。能够以类似折纸的方式弯曲和折叠的自适应结构为可部署结构、软机器人臂、机械传感器和 3D 弹性体的快速原型制作提供了先进的工程机会。膨胀是一种稳健的结构变化方法，因为它在潮湿环境中自然发生，并且可以轻松适应工业设计。该奖项下进行的研究将确定决定膨胀结构机械响应的材料定义的长度尺度。膨胀-结构相互作用将与适当的材料相结合，以可控地将结构变形为所需的形状。可聚合溶胀材料的加入将使这些复杂的形状永久固定，从而控制多个长度尺度上的结构形态。 一项成功的研究将对分层制造产生广泛的影响。从这些努力中获得的知识将进一步加深对瞬态膨胀引起的变形的基本机械理解，同时开发三维软结构永久变形的方法。这项研究将支持一位强大的、富有创造力的博士的参与。候选人，以及学术驱动的本科研究人员。除了影响大学教育外，该项目还将开发一项创新计划，向当地高中生介绍力学驱动的现象。该计划将利用高速摄影向学生展示快速发展的科学世界，并利用这项技术来研究牛顿运动定律。

项目成果

Swelling-induced deformations: a materials-defined transition from macroscale to microscale deformations

• DOI: 10.1039/c3sm00135k
• 发表时间: 2013-01-01
• 期刊: SOFT MATTER
• 影响因子: 3.4
• 作者: Pandey, Anupam;Holmes, Douglas P.
• 通讯作者: Holmes, Douglas P.