Kinematic Hardening Model for Sand and Clay

沙子和粘土的运动硬化模型

• 批准号: 9119272
• 负责人: Poul Lade
• 金额: $ 6.92万
• 依托单位: University of California-Los Angeles
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-07-01 至 1993-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9119272&HistoricalAwards=false
• 关键词: Kinematic; Hardening; Model; Sand; Clay

The objective of this study is to develop a kinematic hardening model for soils that may be used in prediction of soil behavior during large stress reversals and earthquakes. This model will be developed on the basis of experimental evidence of the behavior sand and clay during large three-dimensional stress changes involving unloading and reloading with and without rotation of principal stress axes. Part of the experimental results are available and part will be generated under this study. The results available from triaxial, cubical triaxial, and torsion tests on sand and clay indicate that development of a kinematic hardening model is feasible.

这项研究的目的是为土壤开发一个运动硬化模型，该模型可能用于预测大应力逆转和地震期间土壤行为。该模型将基于在大型三维应力变化中的行为砂和粘土的实验证据，涉及卸载和重新加载，并在主应力轴上旋转和不旋转。一部分实验结果可获得，部分将根据本研究生成。三轴，三方三轴和扭转测试可获得的结果，表明运动硬化模型的发展是可行的。