The determination method of the material parameters of the subloading surface model based on particle properties.

• Project/Area Number: 19780180
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Irrigation, drainage and rural engineering/Rural planning
• Research Institution: University of the Ryukyus
• Principal Investigator: SETOUCHI Hideki University of the Ryukyus, 農学部, 准教授 (90305186)
• Project Period (FY): 2007 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,820,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥420,000); Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000); Fiscal Year 2008: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2007: ¥2,000,000 (Direct Cost: ¥2,000,000)
• Keywords: 土木材料 / 地盤工学 / 粒状体 / 粒子特性 / 強度

Research Abstract

The execution of the simulations using the elastoplastic model for soil is useful for constructing rationally and economically the foundation of the structure. It is one of the models in which the subloading surface model can most appropriately describe the stress-strain behavior of the soil in various elastoplastic models. In this study, the influence of the soil particle shape for the mechanical behavior of the granular materials like sand was revealed from the laboratory experiments. Then, it was presented the determination method of the material parameters of the subloading surface model based on the particle shape.