DEFORMATION ANALYSIS OF GEOSTRUCTURES BY AN OBJECTIVE ALE-METHOD WITHADAPTIVE REMESHING TECHNIQUE

基于自适应网格重整技术的客观 ALE 方法对地质结构的变形分析

• 批准号: 07650567
• 负责人: YASHIMA Atsushi
• 金额: $ 1.28万
• 依托单位: GIFU UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07650567/
• 关键词: adaptive remeshing; ALE method; finite strain; finite element method; couple analysis; mesh size; strain gradient; constitutive model; 地盤; 破壊; 解析; 実験

In thsi study, the modification of the ALE-method has been carried out to simulate the complex behavior of the geostructures near/at failure state.1) Formulation of the coupled finite element analysis was made based on the Arbitrary Lagragian-Eulerian treatment.2) To get the objective ALE method, the combination of the ALE method and the adaptive remeshing technique has been proposed.3) To predict the deformation of clayy ground, the elasto-viscoplastic constitutive model has been implemented into the finite element method.

本文对ALE方法进行了改进，使之能够模拟岩土结构在破坏状态下的复杂行为：1）基于任意拉格朗日-欧拉处理建立了耦合有限元分析的公式; 2）将ALE方法与自适应网格重划技术相结合，得到了目标ALE方法; 3）对粘性土地基的变形进行了预测，将弹粘塑性本构模型应用到有限元法中。

项目成果

F. Oka: "Dynamic and quasi-static characteristics of gradient-dependent viscoplastic model" Proc. 3rd Asia-Pacific Symp. on Aduances in Engineering Plasticity and its Applications. 1. 561-565 (1996)

F. Oka：“梯度相关粘塑性模型的动态和准静态特性”Proc。

F.Oka: "On the solution of gradient-dependent viscoplastic model" Proc.5th Int.Symp.on Plasticity and its Current Applications. 1. 435-438 (1995)

F.Oka：“关于梯度相关粘塑性模型的解决方案”Proc.5th Int.Symp.on Plasticity and its Current Applications。

Fusao OKA: "An application of ALE method to a finite element method in Geomechanics" Proc. Annual meeting of JGS. 1259-1260 (1995)

Fusao OKA：“ALE 方法在地质力学有限元方法中的应用”Proc。

F. Oka: "On the solation of gradient-dependent viscoplastic model" Proc. 5th Int. Symp. on Plasticity and its Carrent Applications. 1. 435-438 (1995)

F. Oka：“关于梯度相关粘塑性模型的求解”Proc。

沢田 和秀: "粘塑性ひずみ勾配型理論に基づく地盤の変形解析" 土木学会第51回年次学術講演会概要集. III. 782-783 (1996)

Kazuhide Sawada：“基于粘塑性应变梯度型理论的地面变形分析”日本土木工程学会第 51 届学术年会摘要 III 782-783（1996）。