CAREER: Multi-Scale and Multi-Disciplinary Aspects of Indentation

本学院早期职业发展（Career）计划项目的研究目标涉及仪器压痕的跨学科应用，以研究许多无机和生物材料系统的弹塑性变形，这些系统对工程和生理社区日益增加的可见度和基础重要性，并跨越纳米到宏观尺寸尺度。压痕作为一种科学工具的力量主要在于它的实验简单性，因为它所涉及的样品制备最少。然而，结果的解释是不平凡的，成功分析的关键是充分的分析建模和补充观察。在该计划中，压痕将用于开发三个“试验台”系统的本构行为：i)衬底上的快速淬火小体积结构，ii)衬底上的碳纳米管阵列，以及iii)肺实质。已经确定了学术、工业和/或临床合作者来增加观点和传播信息。计划为大学开发新的跨学科研究课程，并为K-12学生开发实用和大学前培训课程。

The research objective of this Faculty Early Career Development (CAREER) Program project involves cross-disciplinary applications of instrumented indentation to the investigation of elastic-plastic deformation in a number of inorganic and biological materials systems of increasing visibility and fundamental importance to the engineering and physiological communities, and spanning nano- to macro-scopic size scales. The power of indentation as a scientific tool lies primarily in its experimental simplicity, due to the minimal specimen preparation involved. However, interpretation of results is non-trivial and key to successful analysis are sufficient analytical modeling and supplementary observation. In this plan, indentation will be used to develop constitutive behavior of three 'testbed' systems: i) rapidly quenched small-volume structures on substrates, ii) carbon nanotube arrays on substrates, and iii) lung parenchyma.Academic, industrial and/or clinical collaborators have been identified to add perspective and disseminate information. Efforts are planned to develop new interdisciplinary research courses for university, and practical and pre-collegiate training programs for K-12 students.