RIA: Thermal-Mechanical Analysis of Cohesive Soils: A RobustMethodology

RIA：粘性土壤的热机械分析：稳健的方法

• 批准号: 9108350
• 负责人: Victor Kaliakin
• 金额: $ 5.81万
• 依托单位: University of Delaware
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-07-01 至 1993-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9108350&HistoricalAwards=false
• 关键词: RIA; Thermal; Mechanical; Analysis; Cohesive

The primary objectives of this study are to develop a general but practical method for the analysis of isotropic, saturated cohesive soils which take into account not only material nonlinearities and thermo-mechanical coupling, but also time-dependent characteristics of soil; to develop an efficient numerical implementation of the proposed analysis method; and to verify this method by comparing numerical simulations to results of laboratory and field investigations. A generalized elastoplastic-viscoplastic bounding surface formulation will be extended to realize these objectives to advance the current state of the art in the simulation of heat and fluid flow through a deforming porous medium.

本研究的主要目的是开发一种 一般但实用的方法分析各向同性， 饱和粘性土不仅考虑到 材料非线性和热机械耦合， 而且土壤的时间依赖性特征;发展 一个有效的数值实现所提出的分析 方法，并通过数值比较验证了该方法的有效性 模拟实验室和现场调查的结果。 一种广义弹塑性-粘塑性边界面 为实现这些目标， 在模拟方面推进现有技术水平， 热量和流体流过变形多孔介质。