MRI: Acquisition of a Multi-axial Dynamic Testing System for Characterization of Novel Materials and Systems

该奖项是根据2009年美国复苏和再投资法案（公法111-5）资助的多轴动态测试系统的收购将显着提高北方亚利桑那大学的研究能力。 该设备将用于表征新型磁性、复合材料和生物衍生材料、基于磁流变液的系统以及传统材料的棘轮效应。 特别是，在该设备上进行的实验将有助于理解磁性形状记忆合金的一般磁力学行为，以及这些材料的三维本构模型的校准和验证。 此外，由于缺乏关于屈服面和多轴棘轮应变的实验结果，妨碍了现有棘轮模型的校准，该设备将有助于进行测试，并生成用于校准和验证这些模型的实验数据。 所有这些活动结合了联合收割机基础和应用研究方法，以推进特定领域的现有知识基础。北方亚利桑那大学的重点是为本科生提供高质量的学习体验，这是通过越来越重视发展研究生和研究计划来加强的目标。 购置新仪器将使大学能够丰富研究生和本科生层次的研究和教学活动的整合，从而在多个层次上加强其教育使命。 虽然这些设备将主要用于研究和研究培训，但它将有助于弥合教室和研究实验室之间的差距。 这些设备将使教师能够让本科生和毕业生参与有意义的尖端研究，并用最先进的仪器对他们进行培训。

This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5)The acquisition of a multi-axial dynamic testing system will significantly enhance the research capabilities at Northern Arizona University. The equipment will be used for the characterization of novel magnetic, composite and biologically-derived materials, magnetorheological fluids based systems, and ratcheting of traditional materials. In particular, experiments performed on this equipment will facilitate the understanding of the general magneto-mechanical behavior of magnetic shape memory alloys as well as the calibration and validation of a three-dimensional constitutive model for these materials. In addition, as a lack of experimental results on yield surfaces and multiaxial ratcheting strains hampers the calibration of existing ratcheting models, the equipment will facilitate tests to be performed and experimental data to be generated for calibration and validation of these models. All these activities combine fundamental and applied research approaches to advance the current knowledge base in the specified fields.The focus at Northern Arizona University is to provide a quality learning experience for undergraduates, a goal that is enhanced through an increasing emphasis on developing graduate and research programs. Acquisition of the new instrumentation will allow the University to enrich the integration of research and teaching activities at graduate and undergraduate levels, thus enhancing its educational mission at multiple levels. While this equipment will be used primarily for research and research training, it will help bridge the gap between the classroom and the research lab. The equipment will allow faculty to involve undergraduates and graduates in meaningful, cutting-edge research and to train them with state-of-the-art instrumentation.