LEAP-HI/GOALI: DfAM of Smart Materials Using a Machine Learning Approach

LEAP-HI/GOALI：使用机器学习方法的智能材料 DfAM

• 批准号: 1953259
• 负责人: Mary Frecker
• 金额: $ 50万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-09-01 至 2023-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1953259&HistoricalAwards=false
• 关键词: LEAP; HI; GOALI; DfAM; Smart

This Leading Engineering for America's Prosperity, Health, and Infrastructure (LEAP-HI) / Grant Opportunity for Academic Liaison with Industry (GOALI) project addresses the complex technical challenge of automated design and additive manufacturing (AM) of customized smart materials and devices. Additive manufacturing, or 3D printing, is a layer-wise approach to manufacturing that is rapidly becoming a viable method for large scale production. The medical device industry, in particular, stands to benefit from AM through manufacture of customizable devices for particular patients, diseases, and/or stages of healing. The project advances AM by developing the ability to print “smart” materials that can change shape in response to external stimuli. The technical challenges are motivated by a medical device industry need identified by the industrial partner, Actuated Medical Incorporated (AMI), for patient-specific adaptive devices that are capable of actively changing their shape at periodic intervals as the patient’s needs change. The active polymer materials developed as part of the project are printed in a single AM process and will provide customized multifunctional devices with fully integrated actuation to advance the state of the art in patient-specific medical devices.The intellectual merit of the researched work resides in the convergence of distinct, yet related and mutually beneficial, areas: smart materials, design, additive manufacturing, and industrial scale-up and integration. Despite the evolution of AM technologies and the ever-expanding growth of smart materials, including printable ones, few researchers have demonstrated the 3D printing of multifunctional multi-material structures and devices. The project addresses this gap in knowledge through the integration of processing, modeling, design and characterization, and by investigating the complex interactions between multiple foci. The technical contributions are: (1) development of functionally graded thermoset polymers with customized shape memory and magneto-mechanical response capabilities, and (2) development of a novel AM fabrication process that is capable of conformal printing and functional grading of multiple materials. In collaboration with the industrial partner, the investigators will develop appropriate performance and fabrication requirements and scale up the research results through direct involvement of students and faculty at the industry partner’s facility, while accounting for regulatory requirements.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.

这一领先的美国繁荣、健康和基础设施工程 (LEAP-HI)/学术与工业联络资助机会 (GOALI) 项目解决了定制智能材料和设备的自动化设计和增材制造 (AM) 的复杂技术挑战。制造（或 3D 打印）是一种分层制造方法，正在迅速成为大规模生产的可行方法，尤其是医疗器械行业，可以通过为特定患者制造可定制的设备而从增材制造中受益。该项目通过开发打印“智能”材料的能力来推进增材制造，这些材料可以根据外部刺激改变形状，技术挑战是由工业合作伙伴确定的医疗器械行业需求所激发的。 Actuated Medical Incorporated (AMI)，针对患者特定的自适应设备，能够根据患者需求的变化定期主动改变其形状，作为该项目的一部分开发的活性聚合物材料在单一增材制造工艺中进行打印和打印。将提供具有完全集成驱动的定制多功能设备推进针对患者的医疗设备的最先进技术。研究工作的智力价值在于融合了不同但相关且互利的领域：智能材料、设计、增材制造以及工业规模化和尽管增材制造技术不断发展，智能材料（包括可打印材料）不断发展，但很少有研究人员展示多功能多材料结构和设备的 3D 打印，该项目通过处理集成解决了这一知识空白。 、建模、设计和表征，并通过研究多个焦点之间的复杂相互作用，技术贡献是：（1）开发具有定制形状记忆和磁机械响应能力的功能梯度热固性聚合物，以及（2）开发一种新型增材制造制造工艺。能够对多种材料进行保形印刷和功能分级，研究人员将制定适当的性能和制造要求，并通过行业合作伙伴设施的学生和教师的直接参与扩大研究成果，同时考虑监管。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力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

功能梯度磁活性热固性复合材料的反应挤出增材制造 (REAM)

• DOI: 10.1016/j.addma.2023.103486
• 发表时间: 2023-04
• 期刊: Additive Manufacturing
• 影响因子: 11
• 作者: Uitz, Oliver;Leng, Rui;Pan, Tan;Zhao, Xiaoyue;Oridate, Ademola;Seepersad, Carolyn;Ounaies, Zoubeida;Frecker, Mary
• 通讯作者: Frecker, Mary

Fast, low-energy additive manufacturing of isotropic parts via reactive extrusion

通过反应挤出快速、低能耗地增材制造各向同性零件

• 发表时间: 2021-05
• 期刊: Additive manufacturing
• 影响因子: 11
• 作者: Uitz, Oliver;Koirala, P.;Tehrani, M.;Seepersad, C.
• 通讯作者: Seepersad, C.