High-accurate common numerical method for dynamic behavior of solid and fluid materials

2015 Fiscal Year Final Research Report

• Project/Area Number: 25630195
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Structural engineering/Earthquake engineering/Maintenance management engineering
• Research Institution: Kyoto University
• Principal Investigator: Sawada Sumio 京都大学, 防災研究所, 教授 (70187293)
• Co-Investigator(Kenkyū-buntansha): GOTO Hiroyuki 京都大学, 防災研究所, 准教授 (70452323) ; YONEYAMA Nozomu 京都大学, 防災研究所, 准教授 (90371492)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 数値解析 / 流体解析 / 固体解析 / スロッシング

Outline of Final Research Achievements

We focus on dynamic behavior of intermediate state of solid and fluid materials. Liquefied ground is one of the typical examples. In order to simulate the behavior accurately, common governing equations are introduced representing both solid and fluid materials, and develop a numerical scheme in Lagrange coordinate system. The developed code is verified by static and dynamic analysis on the material combining linear elastic material and Newton fluid. We apply the codes to saturated sand, and analyze the liquefaction considering the sloshing behavior. Results show liquefaction induced by vertical vibration of free surface.

Free Research Field

地震工学