欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
在粘弹性节理岩体的数值仿真中。必需合理地计及节理的影响。若将节理与岩体作为独立的材料组分考虑，在节理密集的情况下，时空两方面的计算开销可能是很难承受的。本文通过时域展开技术与一个简单的等效假定，得到了递推格式的粘弹性单向节理岩体的等效本构关系，及等效场的递推求解格式，并由此数值模拟了一个粘弹性节理岩体中的洞室，计算结果与考虑独立组分的ANSYS粘弹性分析进行了比较，二者的计算平均误差约为11．03％，但前者的计算效率为后者16．81倍。本文工作有可能为粘弹性节理岩体的数值模拟提供一条新的途径。
英文摘要：
A reasonable joint model is necessary for the numerical simulation of viscoelastic jointed rock, If considering joints and rock mass individually with their own constitutive model, the computational expense will be challenged when the number of joints is fairly large. This paper presents a numerical model to prediet equivalent constitutive relationship and deformation of unidirectional viscoelastic joint rock. An adaptive precise algorithm in the time-domain and a simple equivalence assumption are combined to convert a time dependent inhomogeneous problem into a series of recursive time independent homogeneous problems which can be solved either by FEM or other well developed numerical schemes. An equivalent numerical simulation for an underground cave in unidirectional viscoelastic joint rock is given and compared with the solution provided by ANSYS In the viewpoint of balance between computing accuracy and efficiency, the results are fairly good.
同期刊论文项目
同项目期刊论文
Roles of grain boundary and dislocations at different deformation stages of nanocrystalline copper u
Buckling behavior of carbon nanotube-based intramolecular junctions under compression: Molecular dyn
Comparison of theories for stability of truss structures Part 2: Computation of critical solution of
Combined identification of constitutive parameters and in-situ stresses for an elastic Cosserat mode
Effects of Constitutive Parameters and Dynamic Tensile Loads on Radially Periodic Oscillation of Mic
A numerical study of the imperfection effect on ultrananocrystalline diamond properties under differ
Molecular dynamics study of the specimen size and imperfection effects on the failure responses of m
A high efficient assembly technique for large proton exchange membrane fuel cell stacks: Part II App
The loading history and crystal orientation effects on the size-dependency of single crystal diamond
Simultaneous optimization of control parameters and configurations of PZT actuators for morphing str
Multiscale Model-Based Simulation with Applications to Nano and Bio Systems For the 8th World Congre
Topology optimization of continuum structures with different tensile and compressive properties in b
Solving heat transfer problems with phase change via smoothed effective heat capacity and element-fr
Equivalent analysis of orthogonal viscoelastic jointed rock via an adaptive algorithm in time domain
Penetration of Lipid Membranes by Gold Nanoparticles: Insights into Cellular Uptake, Cytotoxicity, a
Non-structure Specific Intensity Measure Parameters and Characteristic Period of Near-fault Ground M
Solving inverse couple-stress problems via an element-free Galerkin (EFG) method and Gauss-Newton al
Continuum topology optimization with non-probabilistic reliability constraints based on multi-ellips
A study of mechanical properties of pure and nitrogen-doped ultrananocrystalline diamond films under
An investigation of combined size, rate and thermal effects on the material properties of single cry
Identification of Geometric Boundary Configurations in Heat Transfer Problems Via Element-Free Galer
Non-probabilistic reliability-based topology optimization of geometrically nonlinear structures usin
Integrated design optimization of voltage channel distribution and control voltages for tracking the
Design of multi-tubular heat exchangers for optimum efficiency of heat dissipation Design of multi-t
Further study on efficiency of sequential approximate programming for probabilistic structural desig
A sequential approximate programming strategy for performance-measure-based probabilistic structural
Stability analyses for axially moving strings in nonlinear free and aerodynamically excited vibratio
Combined identification of constitutive parameters and in-situstress in layered rock mass formulated
Equivalent analysis of orthogonal viscoelastic jointed rock via an adaptive precise algorithm in tim
A generalized JKR-model for two-dimensional adhesive contact of transversely isotropic piezoelectric
A new boundary search scheme for topology optimization of continuum structures with design-dependent
Recursive formulations for multibody systems with frictional joints based on the interaction between
Loading history effect on size-dependent shear strength of pure and nitrogen-doped ultrananocrystall
Coupling upscaling finite element method for consolidation analysis of heterogeneous saturated porou
位置：