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

这项新兴前沿研究与创新（EFRI）折纸设计工程创新（ODISSEI）奖的研究目标是通过响应外部触发器（即，轻），用于免提折叠。 折叠响应于能量到铰链的局部化而发生，所述铰链通过Deskjet印刷限定在聚合物片材上。 这种方法的吸引力在于它的简单性、多功能性和利用多种2D图案化技术的能力，以在暴露于刺激后的几秒钟内将预应变聚合物片材上的表面图案转换为3D物体。 该团队包括两名专门从事表面设计和雕刻的艺术家/设计师，一名具有多尺度材料力学专业知识的机械工程师，一名具有35年折纸经验的数学家，以及材料/化学工程师，旨在通过实验研究和计算模拟折叠过程，以创建新的多功能3D结构，可以快速形成并精确控制形状。 我们将探索实验和模型的缩放规律的折叠，折叠的速度，折叠的力学发展顺应折叠机制。 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的群体的参与，并为K-12学生开发折纸外展模块。 基于2D片材的折叠/展开的新型结构的产生预计将导致开发具有前所未有的功能/性质的材料的新型范例。 我们的方法具有显著的商业相关性，因为它与低技术、高通量2D图案化技术（例如，卷对卷图案化）以及电子学和光子学的2D图案化。 在各种技术应用中使用的可展开材料的包装或制造（包括与空军有关的那些，例如，用于精确空投人道主义物资的可展开机翼）构成将从研究工作中受益的结构的示例。 我们将制定一种吸引当地K-12教师和学生参加我们的跨学科研究工作的一种手段，通过在北卡罗来纳州立大学，埃隆大学，并在梅雷迪思，一个邻近的妇女？s学院。 我们的团队将协同开发和分发外展计划，其中包括艺术家，一位前高中教师，一位教授折纸的数学家，以及来自北卡罗来纳州立大学的工程师/科学家。该项目部分由空军科学研究办公室提供资金支持。

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.