Plasticity & Instabilities in Metals & Metal Matrix Composites: Bridging the Dislocation & Continuum Scales

提出的工作涉及金属和金属基复合材料塑性的中尺度建模框架的发展以及位错和连续尺度之间的联系。目标是确定这些不同尺度的基本方面，并了解不同尺度如何影响材料的整体力学行为。尺度桥接并不是一种新颖的方法，但在这一领域需要做更多的工作，而拟议的工作有望对该领域做出重大贡献。与华盛顿州立大学的Hirth教授和NIST的Thomson博士正在进行的合作对拟议的研究无疑是有利的。提出的工作是非常雄心勃勃的，涵盖了材料行为的许多方面。如果成功，这项研究的结果将对未来设计和开发具有理想工程性能的新材料的技术进步产生重大影响。

The proposed work deals with the development of a meso-scale modeling framework for plasticity of metals and metal matrix composites and the connection between the dislocation and the continuum scales. The goal is to identify the fundamental aspects at these different scales and to gain understanding of how the different scales influence the overall mechanical behavior of materials. Scale bridging is not a novel approach but more work needs to be done in this area and the proposed work promises to make a significant contribution to the field. The ongoing collaboration with Professor Hirth of Washington State University and with Dr. Thomson of NIST are definite pluses for the proposed research. The proposed work is very ambitious and covers many aspects of materials behavior. If successful the outcome of this research will have a significant impact on future technological advances in designing and developing new materials with desirable engineering properties.