LEAP-HI: GOALI: Accelerating Design for Additive Manufacturing of Smart Multimaterial Devices

LEAP-HI：GOALI：加速智能多材料设备增材制造的设计

• 批准号: 2152984
• 负责人: Carolyn Seepersad
• 金额: $ 198.97万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2022
• 资助国家: 美国
• 起止时间: 2022-09-01 至 2023-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2152984&HistoricalAwards=false
• 关键词: LEAP; HI; GOALI; Accelerating; Design

Additive manufacturing (AM), also known as 3D Printing, is the process of making customized parts layer-by-layer, directly from a digital file without the need for part-specific tooling. Relative to conventional manufacturing processes, AM can shorten lead times, reduce waste, avoid supply chain disruptions, and enable unprecedented levels of functionality, design freedom, and customization with significant benefit to industries ranging from aerospace systems to medical devices. This Leading Engineering for America's Prosperity, Health, and Infrastructure (LEAP-HI) Grant Opportunity for Academic Liaison with Industry (GOALI) project supports fundamental research to establish new AM capabilities for smart devices that can be rapidly customized for individual patients and enable engineered changes in shape as the patients’ needs change. The highly integrated nature of this project requires addressing challenges in materials science, design engineering, and AM simultaneously to enable robust manufacturing of advanced smart devices–projected to be a $98.2 billion market by 2025–thus improving US competitiveness in crosscutting industries from medical devices to advanced electronics. Moreover, the project provides an opportunity for a gender studies scholar to study the process of collaboration among the all-female team of PIs and develop a better understanding of how technological and scientific advances are achieved and how to support technical leaders of any gender as they pursue similar goals. Despite recent advances in AM technologies and the growth of research into smart devices and active materials, including printable ones, few researchers have demonstrated AM of smart multimaterial structures and devices. This award provides a transformative opportunity to address this gap in knowledge by careful integration of processing, modeling, design, and characterization, and by investigating the complex interactions between multiple foci. Fundamental investigations include: (1) development of new polymer-based active materials with significantly enhanced performance via gradation of fillers, (2) development of a novel AM process that integrates multiple materials and functionally grades them on demand, (3) development of an efficient, robust design method that accounts for process variability, and (4) an ethnographic analysis of the female leadership team with the potential to positively impact the field of mechanical engineering more broadly. The results are expected to enable the creation of customizable smart devices that can be commercialized by industry partners in medical and other fields.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

增材制造（AM），也称为3D打印，是直接从数字文件逐层制作定制零件的过程，而不需要特定的零件工具。 相对于传统的制造工艺，增材制造可以缩短交货期，减少浪费，避免供应链中断，并实现前所未有的功能水平，设计自由度和定制，为从航空航天系统到医疗器械等行业带来重大利益。 这个领先的美国繁荣、健康和基础设施工程（LEAP-HI）学术与工业联络（GOALI）项目的资助机会支持基础研究，为智能设备建立新的AM功能，这些智能设备可以快速为个体患者定制，并随着患者需求的变化实现形状的工程变化。 该项目的高度集成性要求同时解决材料科学，设计工程和AM的挑战，以实现先进智能设备的强大制造-预计到2025年将达到982亿美元的市场-从而提高美国在从医疗设备到先进电子产品的跨领域行业的竞争力。此外，该项目还为性别研究学者提供了一个机会，研究全女性专业人员团队之间的合作过程，更好地了解如何实现技术和科学进步，以及如何支持任何性别的技术领导人追求类似的目标。 尽管AM技术最近取得了进展，智能设备和活性材料（包括可打印材料）的研究也在增长，但很少有研究人员展示智能多材料结构和设备的AM。该奖项提供了一个变革性的机会，通过精心整合加工，建模，设计和表征，并通过调查多个焦点之间的复杂相互作用来解决这一知识差距。 基本调查包括：（1）开发新的聚合物基活性材料，其通过填料的分级而具有显著增强的性能，（2）开发新的AM工艺，其整合多种材料并根据需要对它们进行功能分级，（3）开发有效的、稳健的设计方法，其考虑工艺可变性，以及（4）对女性领导团队进行人种学分析，并有可能对机械工程领域产生更广泛的积极影响。 该奖项反映了NSF的法定使命，通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Reactive Extrusion Additive Manufacturing (REAM) of Functionally Graded, Magneto-Active Thermoset Composites

• DOI: 10.1016/j.addma.2023.103486
• 发表时间: 2023-03
• 期刊: Additive Manufacturing
• 影响因子: 11
• 作者: O. Uitz;Rui Leng;Tan Pan;Xiaoyue Zhao;A. Oridate;Carolyn C. Seepersad;Z. Ounaies;M. Frecker

Analytical modeling of a magnetoactive elastomer unimorph

• DOI: 10.1088/1361-665x/acece7
• 发表时间: 2023-08
• 期刊: Smart Materials and Structures
• 影响因子: 4.1
• 作者: Tan Pan;Rui Leng;O. Uitz;C. Seepersad;Z. Ounaies;M. Frecker