Dynamics and Scaling in Materials Physics

材料物理中的动力学和尺度

• 批准号: 9510394
• 负责人: Jean Carlson
• 金额: --
• 依托单位: University of California-Santa Barbara
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-07-15 至 1998-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9510394&HistoricalAwards=false
• 关键词: Dynamics; Scaling; Materials; Physics

9510394 Carlson This research addresses complex systems far from equilibrium. New theoretical techniques are developed and exploited to study projects that have an array of applications, including fracture, earthquakes, friction, granular flow, and biological systems. The first topic focuses on transport properties of both models and real systems that the PI and others have studied in the context of self-organized criticality. The second topic involves continuing work in the area of modeling earthquake dynamics, as well as the development of new microscopic models for friction and granular flow. The third topic addresses the development and testing of prediction algorithms for spatially extended systems. %%% Many systems that we seek to understand in the world around us are far from equilibrium. Examples include fracture (breaking of materials), earthquakes, friction, granular flow, and biological systems. This project will continue the work of the Principal Investigator in addressing such phenomena theoretically. One topic involves studying a particular approach called self-organized criticality that applies to motion in many of these situations, at least some of the time. A second topic continues work in the area of earthquake dynamics as well as developing new models for friction and granular flow. The results of the study will be directly compared with recent experimental data. The third major topic involves developing and testing new algorithms that predict the future based on past for such systems. ***

9510394卡尔森这项研究针对的是远离均衡的复杂系统。开发和利用新的理论技术来研究具有一系列应用的项目，包括破裂、地震、摩擦、颗粒流和生物系统。第一个主题集中在PI和其他人在自组织临界性背景下研究的模型和真实系统的输运性质。第二个主题涉及地震动力学建模领域的持续工作，以及摩擦和颗粒流的新微观模型的开发。第三个主题涉及空间扩展系统的预测算法的开发和测试。%我们试图理解周围世界的许多系统远远不是平衡的。例如，断裂(材料的破碎)、地震、摩擦、颗粒流和生物系统。该项目将继续首席调查员在理论上解决这种现象的工作。其中一个主题涉及研究一种称为自组织临界性的特殊方法，这种方法至少在某些情况下适用于其中许多情况下的运动。第二个主题继续在地震动力学领域以及开发新的摩擦和颗粒流模型方面的工作。研究结果将直接与最近的实验数据进行比较。第三个主要主题涉及为这类系统开发和测试基于过去预测未来的新算法。***