US-France Cooperative Research: Computational Model for Three-Dimensional Non-Planar Crack Growth

这项为期两年的美法材料工程合作奖涉及加州大学戴维斯分校和南特中央学院的研究人员。美国的Natarajan Sukumar和法国的Nicolas Moes领导了这个合作项目，开发了一个非平面裂纹扩展的三维计算模型。裂纹扩展是一种复杂的多物理场现象，在这种现象中，材料的宏观整体行为和局部微观特征共同影响着裂纹的破坏过程。强大的裂纹扩展计算机模拟工具的发展可以更好地理解主要的失效模式，并为设计更强、更坚韧的材料（如合金）提供改进。在开发模型模拟时，美国和法国的研究人员建议使用称为扩展有限元素技术的计算方法。在这次合作中，法国调查员提供了数据结构、域积分和代码组件方面的专业知识，这些将促进裂缝增长模型的发展。该奖项为美国调查人员赴法国访问一个月提供旅费和生活费。

0233373 Sukumar This two-year award for US-France collaboration in materials engineering involves researchers at University of California, Davis and the Ecole Centrale de Nantes. Natarajan Sukumar in the US and Nicolas Moes in France lead this cooperative project to develop a three-dimensional computational model for non-planar crack growth. Crack growth is a complex multi-physics phenomena in which global macroscopic material behavior and local microscopic features play a role in the failure process. The development of robust computer simulation tools for crack growth can lead to a better understanding of the dominant modes of failure and provide improvements in designing stronger and tougher materials, such as alloys. In developing a model simulation, the US and French investigators propose to use the computational method known as the extended finite based element technique. In this collaboration, the French investigator provides expertise in data structures, domain integrals and components of the code that will facilitate the development of the crack growth model. This award provides travel funds and living expenses for one-month visits to France by the US investigators.