A Lattice Type Approach for the Micro-mechanical Response of Granular Assemblies

粒状组件微机械响应的格子型方法

• 批准号: 9224488
• 负责人: Muniram Budhu
• 金额: $ 5.06万
• 依托单位: University of Arizona
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-04-15 至 1996-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9224488&HistoricalAwards=false
• 关键词: Lattice; Type; Approach; Micro; mechanical

The objective of this research is to develop a conceptually simple model that can potentially provide new vistas into the complex nature of the mechanical behavior of particulate media. This will be achieved by "zooming" down to the scale of the particle size and numerically examining the details of the particle geometry, kinetics and interactions. Through this simple model, a significant insight into some of the essential features of the particulate medium micro-mechanical behavior, its influence on macro-mechanical behavior, the applicability of homogenization procedures, and the validity of available deterministic and/or phenomenological models could be obtained. This approach seeks a common ground between the interests of engineers/mechanicians and lattice models developed by physicists to achieve full benefits from the available experiences and accomplishments.

本研究的目的是在概念上建立一个 简单的模型，可以潜在地提供新的前景， 机械性能的复杂性 微粒介质。这将通过“缩小”来实现 到颗粒大小的尺度， 颗粒几何形状、动力学和 交互.通过这个简单的模型， 深入了解一些基本特征的 颗粒介质的微观力学行为，其影响 宏观力学行为，适用性 均质化程序，以及可用的有效性 可以获得确定性和/或现象学模型。 这种做法寻求的是 工程师/机械师和晶格模型开发的 物理学家从现有的 经验和成就。