REG: Correlation Between Microstractural Inelasticity and Macroscopic Response of Advanced Materials: Acquisition of a Multi-Channel Laser Interferometer and Sample Preparation

REG：先进材料的微观结构非弹性与宏观响应之间的相关性：多通道激光干涉仪的获取和样品制备

• 批准号: 9311289
• 负责人: Horacio Espinosa
• 金额: $ 5.19万
• 依托单位: Purdue Research Foundation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-07-15 至 1994-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9311289&HistoricalAwards=false
• 关键词: REG; Correlation; Between; Microstractural; Inelasticity

9311289 Espinosa The research to be performed in this investigation will explore microcracking and inelasticity of ceramics and glasses; deformation mechanisms occurring at the microlevel when such materials are subjected to high stresses and strain rates; dynamic propagation of bimaterial cracks; critical conditions for crack initiation and propagation as a function of mode mixity; dynamic friction on films at various temperatures; local inelasticity, mircoplasticity and microcracking in the frictional behavior of interfaces as a function of surface characteristics and lubrication; thermomechanical characterization of smart materials; identification of initiation sites for phase transformations, incubation times and growth kinetics; and the derivation of multidimensional constitutive models.

9311289埃斯皮诺萨在这项调查中进行的研究将探讨陶瓷和玻璃的微裂纹和非弹性;当这种材料受到高应力和应变率时在微观水平上发生的变形机制;双材料裂纹的动态扩展;作为模式混合的函数的裂纹萌生和扩展的临界条件;薄膜在不同温度下的动态摩擦;界面摩擦行为中的局部非弹性、微塑性和微裂纹作为表面特性和润滑的函数;智能材料的热机械特性;相变起始点的识别、孕育时间和生长动力学;以及多维本构模型的推导。