Rock Dynamic Fracture Characteristics Based on NSCB Impact Method
Author
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-05-21
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
In 2012, the International Society for Rock Mechanics (ISRM) recommended a new Notched Semicircular Bend (NSCB) method for the determination of dynamic fracture toughness of rock materials, but it did not consider the effect of some uncontrollable factors in the course of the experiment on the test result.
This thesis firstly carried out dynamic fracture toughness experiments on several typical rock materials such as sandstone using the modified Split-Hopkinson Pressure Bar (SHPB) experimental system with high-speed photography, directly compared the dynamic fracture failure characteristics of several rock materials, and examined the loading rate dependency of the dynamic fracture toughness of rock materials.
Based on the numerical analysis method of Discrete Lattice Spring Model (DLSM), it focused on the effect of bullet impact loading rate, loading area of incident bar, support restraints of clamping specimen, and other uncontrollable factors in the course of SHPB experiment on test results.
The findings can be referenced for the improvement of NSCB method.
American Psychological Association (APA)
Wang, Yanbing. 2018. Rock Dynamic Fracture Characteristics Based on NSCB Impact Method. Shock and Vibration،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215165
Modern Language Association (MLA)
Wang, Yanbing. Rock Dynamic Fracture Characteristics Based on NSCB Impact Method. Shock and Vibration No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1215165
American Medical Association (AMA)
Wang, Yanbing. Rock Dynamic Fracture Characteristics Based on NSCB Impact Method. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215165
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215165