Influence of crack surface friction on crack initiation and propagation: A numerical investigation based on extended finite element method

Xie, Yibo; Cao, Ping; Liu, Jie; Dong, Longjun

doi:10.1016/j.compgeo.2015.12.013

Cited by 72 publications

(30 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, under a relatively high loading rate and a large magnitude of maximum loading pressure, shear crack would occur first (Figure 23). For the closed fissure, Xie et al [174] used XFEM to investigate the crack initiation and propagation in rock-like material with closed fissure under uniaxial compression. e numerical simulation results show that (1) for the specimen with inclination angles 30°and 45°, minor effects are exerted by crack surface friction on the stress distribution around the fissures, and the effect are much more obvious when inclination angle is 60°( Figure 24); (2) when the inclination angle is 45°, it is the most favorable value for crack propagation; (3) the friction seems only to play a minor role on the initiation location and angle of the wing cracks, but the friction has a great influence on the propagation length.…”

Section: Fem or Xfemmentioning

confidence: 99%

Crack Initiation, Propagation, and Failure Characteristics of Jointed Rock or Rock-Like Specimens: A Review

Cao

Lin

Fan

et al. 2019

Advances in Civil Engineering

Self Cite

View full text Add to dashboard Cite

Rock masses are heterogeneous materials containing a large number of discontinuities, and the failure of the natural rock mass is induced by the crack propagation and coalescence of discontinuities, especially for the rock mass around tunnel or underground space. Because the deformation or failure process of jointed rock mass exhibits strongly nonlinear characteristics, it is also very difficult to predict the strength and failure modes of the rock mass. Therefore, it is very necessary to study the failure mechanisms of jointed rock mass under different stress conditions. Apart from the stress condition, the discontinuities geometry also has a significant influence on the mechanical behavior of jointed rock mass. Then, substantial, experimental, and numerical efforts have been devoted to the study of crack initiation, propagation, and coalescence of rock or rock-like specimens containing different kinds of joints or fissures. The purpose of this review is to discuss the development and the contribution of the experiment test and numerical simulation in failure behavior of jointed rock or rock-like specimens. Overall, this review can be classified into three parts. It begins by briefly explaining the significance of studying these topics. Afterwards, the experimental and numerical studies on the strength, deformation, and failure characteristics of jointed rock or rock-like materials are carried out and discussed.

show abstract

Section: Fem or Xfemmentioning

confidence: 99%

Crack Initiation, Propagation, and Failure Characteristics of Jointed Rock or Rock-Like Specimens: A Review

Cao

Lin

Fan

et al. 2019

Advances in Civil Engineering

Self Cite

View full text Add to dashboard Cite

show abstract

“…Vasarhelyi and Bobet applied BEM to successfully simulate crack propagation in specimens with one or two flaws subjected to uniaxial compression. Xie et al analysed the influence of crack surface friction on crack initiation and propagation in rock‐like materials in uniaxial compression using XFEM. Hao and Azzam investigated the effects of interlayer dips, interlayer shear strength, and interlayer locations relative to the underground structure by using UDEC.…”

Section: Introductionmentioning

confidence: 99%

“…Numerical methods can be classified into two categories: continuum-based methods and discontinuum-based methods. In terms of the continuum-based methods, finite element method (FEM), 16,17 finite difference method (FDM), 18 boundary element method (BEM), 19 extended finite element method (XFEM), [20][21][22] phantom node method, 23 strain softening elements, 24 and specific meshfree methods, [25][26][27] such as bond particle method (BPM), 28,29 peridynamics (PD), 30-33 smoothed particle hydrodynamics (SPH), 34 and general particle dynamics (GPD), 35,36 were developed to investigate interlayers and crack problems. In terms of the discontinuum-based methods, distinct lattice spring model (DLSM), 37 discrete element method (DEM), [38][39][40][41][42] discontinuous deformation analysis (DDA), [43][44][45] and numerical manifold method (NMM) [46][47][48] were developed.…”

Section: Introductionmentioning

confidence: 99%

Simulation of cracking behaviours in interlayered rocks with flaws subjected to tension using a phase‐field method

Zhou

Jia

Berto

2019

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

A phase‐field method (PFM) is used to investigate cracking behaviours, including crack initiation and propagation, in interlayered rocks with preexisting flaws subjected to tension. An example with a bi‐material plate with a centre flaw is used to validate the PFM. Then, numerical simulations of cracking behaviours in interlayered rocks with a single flaw and a cross‐flaw are carried out using PFM. Moreover, the load‐displacement responses are numerically investigated. The PFM numerical results show that the crack propagation trajectories and peak loads of rock specimens depend on the preexisting flaw configuration and the mechanical properties of the interlayers.

show abstract

“…Lajtai divided the failure modes of discontinuous rock in direct shear into three types [23], [24], and this system has great theoretical value and practical significance. Afterwards, many scholars studied the propagation and coalescence of structural planes based on uniaxial and biaxial compressive tests [14], [25]- [32]. All of these methods provide a theoretical basis for addressing finite persistence in rock slope stability analysis.…”

Section: Introductionmentioning

confidence: 99%

Reliability Analysis of Rock Slope Excavation Considering the Stochasticity and Finite Persistence of Wedges

Wang

Sun

Tang

2018

Period. Polytech. Civil Eng.

View full text Add to dashboard Cite

IntroductionWedge failure is one of the most common mode of rock slope failure. In most previous engineering applications, the approach to analyzing rock slope stability has been to simply study known wedges, which have a definite shape, size, and location and good persistence, to obtain a stability coefficient. The stereographic projection method [7] are all based on mature theories, are well developed, and are widely used in engineering.However, excavation differs in that there are not yet any good methods for conducting a specific investigation of all structural planes within a rock slope; thus, the wedges exposed in an excavation surface are stochastic and finite persistent. In addition, excavation surfaces are dynamically changing. All of these factors create unpredictability and risk regarding rock slope stability that cannot be addressed using existing methods. Thus, we need a new approach that takes into account the stochasticity and finite persistence of wedges within a rock slope to dynamically analyze the stability of a rock slope excavation, estimate the risk, and guide the construction.Recently, many scholars have presented the concept of stochastic structural-plane network simulation and reliability analysis based on statistics and probability theory. These techniques can be used to describe the spatial distribution of structural planes statistically and to quantify the uncertainty. These two methods have been applied successfully in rock mechanics. [14]. In addition, ever since probability theory was applied to slope engineering in the 1970s, great achievements have been made, including the analysis of rock slope stability using probability theory by . All of these methods effectively address stochasticity in rock slope stability analysis.The effect of finite persistence on rock slope stability cannot be ignored because in practice larger wedges tend to be more stable due to the rock bridge between structural planes. Lajtai

show abstract

Influence of crack surface friction on crack initiation and propagation: A numerical investigation based on extended finite element method

Cited by 72 publications

References 53 publications

Crack Initiation, Propagation, and Failure Characteristics of Jointed Rock or Rock-Like Specimens: A Review

Crack Initiation, Propagation, and Failure Characteristics of Jointed Rock or Rock-Like Specimens: A Review

Simulation of cracking behaviours in interlayered rocks with flaws subjected to tension using a phase‐field method

Reliability Analysis of Rock Slope Excavation Considering the Stochasticity and Finite Persistence of Wedges

Contact Info

Product

Resources

About