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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。
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...
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...
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...
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,...
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...
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...
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...
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...
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...
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...
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 。

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