搜索结果: 1-15 共查到“理学 fracture”相关记录33条 . 查询时间(0.175 秒)
Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：3D Fracture Development Analysis with A Modified XFEM
XFEM 三维裂缝 发育分析
2023/11/6
扩展有限元法(XFEM)是目前裂纹分析的主流数值方法。2009年起，ABAQUS、ANSYS等主流商业软件集成XFEM并应用于裂纹问题，标志着该方法被工业界广泛接受。然而，在实际应用中XFEM仍然受到两方面的困扰：总体方程高度病态和动力学计算时能量难以守恒。基于“困难的根源在于单位分解插值引入的额外自由度”这一判断和认识，我们提出了一种无额外自由度的改进型扩展有限元方法，有效解决了现有方法总体刚度...
By examining earthquake models from a fresh perspective, Cornell engineers now show that the earthquake fracture energy – once thought to relate to how faults in the Earth’s crust weaken – is related ...
西华大学高分子物理英文课件Chapter7 Yield & fracture of polymers
西华大学 高分子物理 英文课件 Chapter7 Yield fracture polymers
2019/11/29
西华大学高分子物理英文课件Chapter7 Yield & fracture of polymers。
Performance-based fractal fracture model for complex fracture network simulation
Fractal geometry Fractal fracture model Complex fracture network characterization Contributing reservoir volume Refracturing
2018/4/2
The paper presents a novel hydraulic fracturing model for the characterization and simulation of the complex fracture network in shale gas reservoirs. We go beyond the existing method that uses planar...
The influence of genetic susceptibility and calcium plus vitamin D supplementation on fracture risk
fracture bone mineral density genetic risk score calcium vitamin D postmenopausal women
2018/11/13
Background: Fracture is a complex trait, affected by both genetic and environmental factors. A meta-analysis of genome-wide association studies (GWASs) identified multiple bone mineral density (BMD) a...
A new mixed-mode fracture criterion for large-scale lattice models
mixed-mode fracture criterion large-scale lattice models
2014/12/18
Reasonable fracture criteria are crucial for the
modeling of dynamic failure in computational lattice models.
Successful criteria exist for experiments on the micro- and
on the mesoscale, which are...
Numerical Modeling of Fracturing in Non-Cylindrical Folds: Case Studies in Fracture Prediction Using Structural Restoration
Fractures Geomechanics Joints Sant Corneli anticline Unfolding Fracture prediction Structural restoration
2014/10/22
This thesis contains several distinct studies aimed at better understanding fracturing in compressional fault-cored folds. At outcrops of growth strata in the Oliana anticline in the Spanish Pyrenees,...
2014 国际离散裂缝网络工程会议（DFNE 2014 International Discrete Fracture Network Engineering Conference）
2014 国际离散裂缝网络工程会议 DFNE 2014 International Discrete Fracture Network Engineering Conference
2013/11/22
The Vancouver rock mechanics community is pleased to host DFNE 2014, the 1st International Conference on Discrete Fracture Network Engineering. This conference will be the inaugural international meet...
Reactive-infiltration instabilities in rocks. Fracture dissolution
Reactive-infiltration instabilities rocks Fracture dissolution Fluid Dynamics
2012/4/19
A reactive fluid dissolving the surface of a uniform fracture will trigger an instability in the dissolution front, leading to spontaneous formation of pronounced well-spaced channels in the surroundi...
Threshold Characteristics of Pulse Loads Causing Fracture on an Example of Concrete and Rocks
threshold pulse crack extension electrical expl osion of conductor fr acture energy concrete rocks
2012/9/24
The technique of definition of threshold parameters of an impact is shown. The experimental results on crack extension in concrete and rocks under the short pulse (2 μ s) of loading are presented. Th...
Hierarchic Nature of Dynamic Deformation and Fracture of Rock Mass
hierarchy of internal structure rock mass dynamic deformation and fracture hierarchic nature
2012/9/24
Dynamic deformation and fracture process of rock mass are investigated from the perspective of structural hierarchy. The relationship between spatial scales of deformation and fracture with strain rat...
A solvable model of fracture with power-law distribution of fragment sizes
solvable model power-law distribution Statistical Mechanics
2011/7/27
Abstract: The present paper describes a stochastic model of fracture, whose fragment size distribution can be calculated analytically as a power-law-like distribution. The model is basically cascade f...
Calculation technique for simulation of wave and fracture dynamics in a reinforced sheet
Calculation technique wave and fracture dynamics
2011/8/30
Mathematical models and computer algorithms are developed to calculate dynamic stress concentration and fracture wave propagation in a reinforced composite sheet. The composite consists of a regular s...
Calculation technique for simulation of wave and fracture dynamics in a reinforced sheet
simulation of wave fracture dynamics reinforced sheet Computational Physics
2011/7/27
Abstract: Mathematical models and computer algorithms are developed to calculate dynamic stress concentration and fracture wave propagation in a reinforced composite sheet. The composite consists of a...
SIDIS in the target fragmentation region: polarized and transverse momentum dependent fracture functions
SIDIS polarized transverse momentum
2011/4/7
SIDIS in the target fragmentation region: polarized and transverse momentum dependent fracture functions 。