Lin Chen,Farshid Fathi,Rene de Borst
Lin Chen
This paper addresses fluid-driven crack propagation in a porous medium. Cohesive interface elements are employed to model the behaviour of the crack. To simulate hydraulic fracturing, a fluid pressure degree of freedom is introduced inside ...
An intergranular strain concept for material models formulated as rate equations [0.03%]
基于速率方程建立材料模型的晶间应变概念
Manuel Bode,Wolfgang Fellin,David Mašín et al.
Manuel Bode et al.
The intergranular strain concept was originally developed to capture the small-strain behaviour of the soil with hypoplastic models. A change of the deformation direction leads to an increase of the material stiffness. To obtain elastic beh...
On a nonlinear hybrid method for multiscale analysis of a bearing-capacity test of a real-scale segmental tunnel ring [0.03%]
一种非线性杂交方法在真实尺寸隧道管片抗压承载力试验多尺度分析中的应用研究
Jiao-Long Zhang,Herbert A Mang,Xian Liu et al.
Jiao-Long Zhang et al.
A nonlinear hybrid method is developed for multiscale analysis of a bearing-capacity test of a real-scale segmental tunnel ring subjected to point loads. The structural analysis consists of two parts. Part I refers to modeling of bending-in...
Cohesive fracture analysis using Powell-Sabin B-splines [0.03%]
Powell-Sabin分片曲率连续三折板元的强渐近性态及在裂纹扩展模拟中的应用
Lin Chen,René de Borst
Lin Chen
Powell-Sabin B-splines, which are based on triangles, are employed to model cohesive crack propagation without a predefined interface. The method removes limitations that adhere to isogeometric analysis regarding discrete crack analysis. Is...
Multi-slicing strategy for the three-dimensional discontinuity layout optimization (3D DLO) [0.03%]
三维连续体结构不连续性布局优化的多切片策略研究
Yiming Zhang
Yiming Zhang
Discontinuity layout optimization (DLO) is a recently presented topology optimization method for determining the critical layout of discontinuities and the associated upper bound limit load for plane two-dimensional and three-dimensional (3...
Mesoscale analysis of failure in quasi-brittle materials: comparison between lattice model and acoustic emission data [0.03%]
准脆性材料失效的细观分析：晶格模型与声发射实验数据对比
David Grégoire,Laura Verdon,Vincent Lefort et al.
David Grégoire et al.
The purpose of this paper is to analyse the development and the evolution of the fracture process zone during fracture and damage in quasi-brittle materials. A model taking into account the material details at the mesoscale is used to descr...
Intersecting dilated convex polyhedra method for modeling complex particles in discrete element method [0.03%]
离散元法中用于模拟复杂颗粒的膨胀凸多面体相交方法研究
Ben Nye,Anton V Kulchitsky,Jerome B Johnson
Ben Nye
This paper describes a new method for representing concave polyhedral particles in a discrete element method as unions of convex dilated polyhedra. This method offers an efficient way to simulate systems with a large number of (generally co...