Asset Details
Do you wish to reserve the book?
Investigation of Phyllite-based Brazilian tests and fracture failure patterns via AE and PFC3D
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?
Investigation of Phyllite-based Brazilian tests and fracture failure patterns via AE and PFC3D
Do you wish to request the book?
Investigation of Phyllite-based Brazilian tests and fracture failure patterns via AE and PFC3D
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
Investigation of Phyllite-based Brazilian tests and fracture failure patterns via AE and PFC3D
2024
Overview
Phyllite, characterized by well-developed foliation, is a low-grade metamorphic rock. This study offers a comprehensive investigation into its failure patterns and micro-fracture classifications when subjected to Brazilian splitting tests, combining experimental observations and numerical simulations. The analysis includes interpreting AE signals in various contexts, highlighting two distinct failure modes based on the foliation-loading angles, and revealing the emergence of an M-shaped brittleness tendency as
θ
increases. Micro-crack classification is achieved through frequency band and spectrum analysis, culminating in deriving the formula
A
F
=
116.565
×
R
A
+
80.146
, which furnishes a detailed understanding of crack development. Utilizing the PFC3D software, sensitivity analyses are conducted to investigate the influence of joint parameters on failure strengths, damage patterns, and micro-crack progression within this transverse isotropy rock. Key findings include the observation that shear strength enhancement tends to shift the rock from a layer-activated fracture pattern to mixed and central damage patterns and amplifies the impact of
θ
at larger angular intervals on failure strength. Stiffness strengthening is found to significantly inhibit rock matrix cracking, particularly at smaller foliation-loading angles, while the influence of friction coefficients is deemed negligible. These insights into Phyllite damage mechanisms and behaviors contribute to the design and assessment of structures in stratified strata, offering valuable guidance for enhancing stability and safety.
Publisher
Springer Berlin Heidelberg,Springer Nature B.V
