Development of a New Mechano-Thermo-Magnetic Testing System for Smart Materials and for Student Training

开发用于智能材料和学生培训的新型机械热磁测试系统

• 批准号: 9975848
• 负责人: Minoru Taya
• 金额: $ 6.86万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-01 至 2001-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9975848&HistoricalAwards=false
• 关键词: Development; New; Mechano; Thermo; Magnetic

9975848TayaThis award will provide partial support for the development of a new experimental capability necessary for the experimental study of a new class of smart magnetic materials that exhibit coupling among the mechanical, thermal and magnetic behavior: magnetostrictive alloys, magnetostrictive alloy fiber and particulate actuated polymer matrix composites and homogeneous ferromagnetic shape memory alloys and their composites. These magnetic smart materials are increasingly important, as they constitute a key actuator element for smart devices and structures thanks to their fast and powerful response at the time of actuation. Accurate characterization of these magnetic smart materials will provide precise data for the constitutive equations of the materials, which will be used by the engineers designing such smart devices.The testing system will allow testing under a very broad range of magnetro-thermo-mechanical loading. For instance, it will be possible to perform constant stress - increasing magnetic field or constant magnetic field - increasing applied stress and magnetization experiments in which the stress and field axes are parallel or orthogonal to one another. Finally, the electromagnet may be used separately for the measurement of magnetic properties at constant temperature and stress free hysteresis behaviors. The instrument will be used for short, intermediate to long-term purposes. The short to intermediate term purpose includes use of the instrument to characterize the magnetoelastic properties of the ferromagnetic shape memory alloys under magneto-thermo-mechanical loading, as a part of the current research project, design of shape memory alloys for actuator system of helicopter blades, in collaboration with aerospace companies. For the intermediate to long-term purpose, the proposed instrument will be used for characterization of the ferromagnetic SMAs with transformation temperatures close to a human body temperature with applications to biomedical implant devices. Students and faculty engineers at several local companies, at the University of Washington, and researchers at the National Institute of Standards and Testing (NIST), Boulder, Colorado will use the instrument.The instrument will also be used for undergraduate education allowing a new course in magneto-rheological design to be developed, and magnetic modules to be added to existing materials science courses. %%%The developed facility will significantly enhance the research capabilities and collaborative interactions of faculty and students at the University of Washington the private sector, and a Federal government laboratory.***

9975848该奖项将为开发一种新的实验能力提供部分支持，该能力是对一种新型智能磁性材料进行实验研究所必需的，这种材料表现出机械、热和磁行为之间的耦合：磁致伸缩合金、磁致伸缩合金纤维和颗粒驱动聚合物基复合材料以及均匀的铁磁形状记忆合金及其复合材料。这些磁性智能材料越来越重要，因为它们构成了智能设备和结构的关键致动器元件，这要归功于它们在致动时的快速和强大的响应。对这些磁性智能材料的准确表征将为材料的本构方程提供准确的数据，这些数据将被设计这种智能设备的工程师使用。测试系统将允许在非常广泛的磁热机械加载下进行测试。例如，可以进行应力和场轴彼此平行或垂直的恒应力增加磁场或恒定磁场增加外加应力和磁化实验。最后，该电磁铁可单独用于恒温磁性测量和无应力磁滞行为的测量。该仪器将用于短期、中期和长期目的。短期和中期目的包括使用该仪器表征铁磁形状记忆合金在磁热机械加载下的磁弹性性质，作为当前研究项目的一部分，与航空航天公司合作设计用于直升机叶片执行器系统的形状记忆合金。从中长期来看，该仪器将用于表征转变温度接近人体温度的铁磁性SMA，并将其应用于生物医学植入设备。华盛顿大学几家当地公司的学生和教师工程师，以及科罗拉多州博尔德市国家标准与测试研究所(NIST)的研究人员将使用该仪器。该仪器还将用于本科教育，以便开发一门新的磁流变设计课程，并在现有的材料科学课程中添加磁性模块。%开发的设施将显著增强华盛顿大学、私营部门和联邦政府实验室的教职员工和学生的研究能力和协作互动。