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卡尔森这项研究解决了远离均衡的复杂系统。 开发并利用了新的理论技术来研究具有一系列应用的项目，包括断裂，地震，摩擦，颗粒流量和生物系统。 第一个主题侧重于PI和其他人在自组织批判性的背景下研究的模型和实际系统的运输属性。 第二个主题涉及在建模地震动力学领域的持续工作，以及开发用于摩擦和颗粒流量的新显微镜模型。 第三个主题介绍了空间扩展系统的预测算法的开发和测试。 %%％我们试图在我们周围世界上理解的许多系统远非平衡。 例子包括断裂（材料破裂），地震，摩擦，颗粒流和生物系统。 该项目将继续主要研究人员在理论上解决这种现象的工作。 一个主题涉及研究一种特定的方法称为自组织的批判性，在许多情况下，至少在某些情况下适用于运动。 第二个主题继续在地震动态领域以及开发新的摩擦和颗粒流量模型。 研究结果将直接与最新的实验数据进行比较。 第三个主要主题涉及开发和测试新算法，这些算法可以根据过去的过去预测未来。 ***