EAGER: SMA Z-Pinned SMP Cored Sandwich Structure for Self-Healing Impact Damage

EAGER：SMA Z 销 SMP 芯夹层结构，可实现冲击损伤的自我修复

• 批准号: 0946740
• 负责人: Guoqiang Li
• 金额: $ 3万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-10-01 至 2010-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0946740&HistoricalAwards=false
• 关键词: EAGER; SMA; Pinned; SMP; Cored

"This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)."The objective of this EAGER project is to explore a novel concept - shape memory alloy (SMA) z-pinned sandwich with an integrated, grid stiffened shape memory polymer (SMP) based syntactic foam core for healing impact damage autonomously, repeatedly, and efficiently. In this study, SMA z-pins will be used to achieve autonomous programming and transverse confinement of the SMP foam core. The following will be conducted: (1) select a compatible SMA and SMP pair so that the designed functionality can be achieved; (2) fabricate SMA z-pinned hybrid smart sandwich panel; (3) conduct programming; (4) conduct repeated low-strain rate impact test and self-healing test; and (5) determine the residual strength and self-healing efficiency. This project will contribute to the integration of research results into education, graduate student mentoring, involvement of student in lab experiments and curriculum development at both Louisiana State University (LSU) and Southern University (SU). It will enhance the research and education infrastructure by reforming syllabi of composite materials classes. One graduate student will be directly involved in this project. The opportunities for under-represented minorities will be promoted by directly exposing minority students to this research through seminars and class teaching.

这个项目的目标是探索一种新的概念--形状记忆合金(SMA)Z钉夹层，带有集成的、基于网格加筋形状记忆聚合物(SMP)的句法泡沫核心，用于自主、重复和高效地修复冲击损伤。在这项研究中，SMA Z销将用于实现SMP泡沫芯的自主编程和横向约束。将进行以下工作：(1)选择兼容的SMA和SMP对，以实现所设计的功能；(2)制作SMA z钉混合智能夹层板；(3)进行编程；(4)反复进行低应变率冲击试验和自愈试验；(5)确定剩余强度和自愈效率。该项目将有助于将研究成果纳入路易斯安那州立大学(LSU)和南方大学(SU)的教育、研究生指导、学生参与实验室实验和课程开发。它将通过改革复合材料课程的教学大纲来加强研究和教育基础设施。一名研究生将直接参与这个项目。将通过研讨会和课堂教学让少数群体学生直接接触这项研究，从而促进代表不足的少数群体的机会。