Asset Details
Do you wish to reserve the book?
A Bonded Particle Model Simulation of Shear Strength and Asperity Degradation for Rough Rock Fractures
Hey, we have placed the reservation for you!
By the way, why not check out events that you can attend while you pick your title.
Oops! Something went wrong.
Looks like we were not able to place the reservation. Kindly try again later.
Are you sure you want to remove the book from the shelf?
A Bonded Particle Model Simulation of Shear Strength and Asperity Degradation for Rough Rock Fractures
Do you wish to request the book?
A Bonded Particle Model Simulation of Shear Strength and Asperity Degradation for Rough Rock Fractures
Please be aware that the book you have requested cannot be checked out. If you would like to checkout this book, you can reserve another copy
We have requested the book for you!
Your request is successful and it will be processed during the Library working hours. Please check the status of your request in My Requests.
Oops! Something went wrong.
Looks like we were not able to place your request. Kindly try again later.
Journal Article
A Bonded Particle Model Simulation of Shear Strength and Asperity Degradation for Rough Rock Fractures
2012
Overview
Different failure modes during fracture shearing have been introduced including normal dilation or sliding, asperity cut-off and degradation. Attempts have been made to study these mechanisms using analytical, experimental and numerical methods. However, the majority of the existing models simplify the problem, which leads to unrealistic results. With this in mind, the aim of this paper is to simulate the mechanical behaviour of synthetic and rock fracture profiles during direct shear tests by using the two-dimensional particle flow computer code PFC2D. Correlations between the simulated peak shear strength and the fracture roughness parameter
D
R1
recently proposed by Rasouli and Harrison (
2010
) are developed. Shear test simulations are carried out with PFC2D and the effects of the geometrical features as well as the model micro-properties on the fracture shear behaviour are studied. The shear strength and asperity degradation processes of synthetic profiles including triangular, sinusoidal and randomly generated profiles are analysed. Different failure modes including asperity sliding, cut-off, and asperity degradation are explicitly observed and compared with the available models. The
D
R1
parameter is applied to the analysis of synthetic and rock fracture profiles. Accordingly, correlations are developed between
D
R1
and the peak shear strength obtained from simulations and by using analytical solutions. The results are shown to be in good agreement with the basic understanding of rock fracture shear behaviour and asperity contact degradation.
Publisher
Springer Vienna,Springer Nature B.V
