Support for US Participants for Symposium on Methods to Predict the Structural and Mechanical Properties of Dense Granular Media, Graz, Austria, July 9-13, 2012

1244382 PI：Behringer该提案将涵盖美国科学家的差旅相关费用，这些科学家将在奥地利格拉兹举行的第八届EUROMECH固体力学会议（ESMC 2012）上（2012年7月9日至13日）的小型研讨会上展示他们的研究成果，并与其他专家进行互动，该研讨会题为“预测致密颗粒介质的结构和力学性能的方法”。ESMC 2012的小型研讨会将加强来自欧洲，美国和其他地区的研究人员之间的合作关系，他们在上述学科工作，并研究致密颗粒材料。颗粒材料可以存在于高度流化，液体状，或固体状相取决于驱动机制和强度。在描述粒状气体和稀流体方面已经有了相当大的进展。然而，发展致密颗粒材料（DGM）和流体到固体或堵塞过渡的可靠描述仍然是该领域的重大研究挑战之一。如果社区要理解并最终预测DGM的行为，我们必须开发创新的方法来表征多尺度结构，并开发统计和数学技术，将结构，机械和统计特性与宏观约束联系起来。目前的研究DGM的首要目标是开发统计和数学模型，可用于定量和预测描述其结构和力学性能的制备历史和颗粒特性的频谱。小型研讨会将促进实现这一目标的进展，使研究人员之间的互动，否则谁可能没有这个机会。颗粒材料广泛存在于自然界、工业应用和日常环境中。重要的应用，仅在美国每年就涉及数万亿美元，从石油和采矿业中岩石和土壤的处理和运输到制药业中粉末和药丸的加工。尽管它们在工业和自然界中广泛存在，但我们预测它们行为的能力远远落后于牛顿流体等更传统的材料。这一领域的进展将产生重大的经济影响。此外，该提案将帮助支持初级参与者的旅行费用，这将有助于他们为STEM学科的未来职业做好准备。它还将为女性研究人员和代表性不足群体的研究人员提供机会。

1244382PI: BehringerThis proposal will cover travel-related expenses for US scientists who will present their research, and interact with other experts, at the mini-symposium entitled, Methods to Predict the Structural and Mechanical Properties of Dense Granular Media, at the 8th EUROMECH Solid Mechanics Conference (ESMC 2012) in Graz, Austria (July 9-13, 2012). This mini symposium at ESMC 2012 will strengthen collaborative ties between researchers from Europe, the U.S. and other regions, who work in the disciplines above, and who study dense granular materials. Granular materials can exist in highly fluidized, liquid-like, or solid-like phases depending on the driving mechanism and intensity. There has been considerable progress in describing granular gases and dilute fluids. However, developing reliable descriptions of dense granular materials (DGM) and the fluid-to-solid or jamming transition remains one of the grand research challenges in this field. If the community is to understand and eventually predict the behavior of DGM, we must develop innovative ways to characterize multi-scale structures, and develop statistical and mathematical techniques that can relate structural, mechanical, and statistical properties to imposed macroscopic constraints. The overarching goal of current studies of DGM is to develop statistical and mathematical models that can be used for quantitative and predictive description of their structural and mechanical properties given a spectrum of preparation histories and particle properties. The mini symposium will facilitate progress towards this goal by enabling interactions between researchers who might not otherwise have this opportunity. Granular materials occur broadly in nature, industrial applications, and the day-to-day environment. Important applications, involving trillions of dollars per year in the US alone, range from the handling and transport of rocks and soils in the oil and mining industries to the processing of powders and pills in the pharmaceutical industry. Despite their wide-ranging appearance in industry and nature, our ability to predict their behavior lags far behind that for more conventional materials such as Newtonian fluids. Advances in this field would have a major economic impact. In addition, this proposal will help support travel costs of junior participants, which will help prepare them for future careers in STEM disciplines. It will also provide opportunities for women researchers and researchers from under-represented groups.