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

“该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的。“EAGER项目的目标是探索一种新的概念-形状记忆合金（SMA）z-销夹层结构，其具有集成的、网格加强的形状记忆聚合物（SMP）基复合泡沫芯，用于自主、重复和有效地愈合冲击损伤。在这项研究中，形状记忆合金z针将用于实现自主编程和横向限制的SMP泡沫芯。将进行以下工作：（1）选择兼容的SMA和SMP对，以便可以实现设计的功能;（2）制造SMA z-pin混合智能夹层板;（3）进行编程;（4）进行重复低应变率冲击试验和自愈合试验;（5）确定剩余强度和自愈合效率。该项目将有助于研究成果融入教育，研究生辅导，学生参与实验室实验和课程开发在路易斯安那州州立大学（LSU）和南方大学（SU）。 通过改革复合材料课程的教学大纲，加强研究和教育基础设施。一名研究生将直接参与该项目。将通过研讨会和课堂教学，使少数民族学生直接接触这项研究，从而促进代表性不足的少数民族的机会。

"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.