EFRI-ODISSEI: Externally-Triggered Origami of Responsive Polymer Sheets

EFRI-ODISSEI：外部触发响应聚合物片折纸

• 批准号: 1240438
• 负责人: Jan Genzer
• 金额: $ 175.88万
• 依托单位: North Carolina State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2018-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1240438&HistoricalAwards=false
• 关键词: EFRI; ODISSEI; Externally; Triggered; Origami

The research objective of this Emerging Frontiers in Research and Innovation (EFRI) Origami Design for the Integration of Self-assembling Systems for Engineering Innovation (ODISSEI) award is to study a new class of origami by means of polymer sheets that fold in response to external triggers (i.e., light), for hands free folding. Folding occurs in response to the localization of energy to hinges that are defined on the polymer sheet by Deskjet printing. The appeal of this approach is its simplicity, versatility, and ability to harness the multitude of 2D patterning techniques to convert surface patterns on pre-strained polymer sheets into 3D objects within seconds upon exposure to a stimulus. The team, which includes two artists/designers who specialize in surface design and sculpting, a mechanical engineer with expertise in multi-scale mechanics of materials, a mathematician with 35 years of origami experience, and materials/chemical engineers, seeks to study experimentally and model computationally the folding process to create new multi-functional 3D structures that can form rapidly with precise control over shape. We will explore experimentally and model the scaling laws of folding, the rate of folding, and the mechanics of folding to develop compliant folding mechanisms. Our interdisciplinary team will collaborate to advance our scientific objectives while broadening participation of underrepresented groups and developing outreach modules on origami for K-12 students. Generation of novel structures based on folding/unfolding of 2D sheets is expected to lead to a novel paradigm towards developing materials with unprecedented function/property. Our approach has significant commercial relevance because it is compatible with both low-tech, high throughput 2D patterning techniques (e.g., roll-to-roll patterning) as well as 2D patterning of electronics and photonics. Packaging or manufacturing of unfoldable materials employed in various technological applications (including those relevant to the Air Force, such as, unfoldable air foils for precision airdrop of humanitarian supplies) constitute examples of structures that will benefit from the research effort. We will develop a means of attracting local K-12 teachers and students to take part in our interdisciplinary research endeavors through educational and outreach programs at NC State University, Elon University, and at Meredith, a neighboring women?s college. The outreach programs will be developed and distributed synergistically by our team featuring artists, a former high school teacher, a mathematician who teaches origami, and engineers / scientists from NC State University.This project is supported in part by funds from the Air Force Office of Scientific Research.

该研究与创新新兴前沿 (EFRI) 工程创新自组装系统集成折纸设计 (ODISSEI) 奖项的研究目标是研究一种新型折纸，通过响应外部触发器（即光）而折叠的聚合物片材，实现免提折叠。 折叠是响应能量定位到通过 Deskjet 打印在聚合物片上定义的铰链而发生的。 这种方法的吸引力在于其简单性、多功能性以及利用多种 2D 图案化技术在受到刺激后几秒钟内将预应变聚合物片上的表面图案转换为 3D 物体的能力。 该团队由两名专门从事表面设计和雕刻的艺术家/设计师、一名精通多尺度材料力学的机械工程师、一名拥有 35 年折纸经验的数学家以及材料/化学工程师组成，致力于对折叠过程进行实验研究和计算建模，以创建新的多功能 3D 结构，可以通过精确控制形状快速形成。 我们将通过实验探索折叠的缩放定律、折叠速率和折叠机制并对其进行建模，以开发顺应的折叠机制。 我们的跨学科团队将合作推进我们的科学目标，同时扩大代表性不足群体的参与，并为 K-12 学生开发折纸外展模块。 基于二维片材折叠/展开的新颖结构的生成预计将带来开发具有前所未有的功能/特性的材料的新范例。 我们的方法具有重要的商业意义，因为它与低技术、高吞吐量的 2D 图案化技术（例如卷对卷图案化）以及电子和光子学的 2D 图案化兼容。 用于各种技术应用（包括与空军相关的技术应用，例如用于精确空投人道主义物资的可折叠气箔）的可折叠材料的包装或制造构成了将从研究工作中受益的结构示例。 我们将通过北卡罗来纳州立大学、埃隆大学和邻近女子学院梅雷迪思的教育和外展项目，开发一种吸引当地 K-12 教师和学生参与我们的跨学科研究活动的方法。 外展项目将由我们的团队协同开发和分发，团队成员包括艺术家、前高中教师、教授折纸的数学家以及北卡罗来纳州立大学的工程师/科学家。该项目的部分资金来自空军科学研究办公室。