U.S.-France Cooperative Research: Micromechanics of Nonlinear Composites and Polycrystals

这个为期三年的奖项为美法合作研究提供支持， 非线性复合材料本构行为预测方法的发展 材料. 该合作涉及Pedro Ponte Castaneda和John Bassani， 宾夕法尼亚大学和皮埃尔·苏凯的研究小组在力学和 位于马赛的法国国家科学研究中心声学实验室， 法国 研究人员将把他们的研究重点放在非线性的自洽模型上。 复合材料和多晶体的应用。 他们还将调查物质行为 在单晶水平，包括弹粘塑性，多滑移硬化，和 规模的努力。 美国研究人员为这次合作带来了非线性理论工作的专业知识， 均匀化和晶体塑性。 这是补充实验设施， 马赛和法国在数值方法方面的专业知识。 该项目将推进 理解涉及变形的非线性微观机制， 材料断裂，如塑料和金属。

This three-year award provides support for US-France cooperative research aimed at the development of methods to predict the constitutive behavior of nonlinear composite materials. The collaboration involves Pedro Ponte Castaneda and John Bassani of the University of Pennsylvania and the research group of Pierre Suquet at the Mechanics and Acoustics Laboratory of the French National Center for Scientific Research in Marseille, France. The investigators will focus their research on self-consistent models of nonlinear composites and applications to polycrystals. They will also investigate material behavior at the single-crystal level, including elasto-viscoplasticity, multiple-slip hardening, and size-scale efforts. The US researchers bring to this collaboration expertise in theoretical work on nonlinear homogenization and crystal plasticity. This is complemented by experimental facilities in Marseille and French expertise in numerical methods. The project will advance understanding of nonlinear microscopic mechanisms involved in deformation and fracture of materials, such as plastics and metals.