Experimental and Numerical Investigations on Feasibility and Validity of Prismatic Rock Specimen in SHPB
Joint Authors
Li, Xibing
Li, Diyuan
Zhou, Tao
Wang, Zewei
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-05-19
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
The paper presents experimental and numerical studies on the feasibility and validity of using prismatic rock specimens in split Hopkinson pressure bar (SHPB) test.
Firstly, the experimental tests are conducted to evaluate the stress and strain uniformity in the prismatic specimens during impact loading.
The stress analysis at the ends of the specimen shows that stress equilibrium can be achieved after about three wave reflections in the specimen, and the balance can be well maintained for a certain time after peak stress.
The strain analysis reveals that the prismatic specimen deforms uniformly during the dynamic loading period.
Secondly, numerical simulation is performed to further verify the stress and strain uniformity in the prismatic specimen in SHPB test.
It indicates that the stress equilibrium can be achieved in prismatic specimen despite a certain degree of stress concentration at the corners.
The comparative experiments demonstrate that the change of specimen shape has no significant effect on dynamic responses and failure patterns of the specimen.
Finally, a dynamic crack propagation test is presented to show the application of the present work in studying fracturing mechanisms under dynamic loading.
American Psychological Association (APA)
Li, Xibing& Zhou, Tao& Li, Diyuan& Wang, Zewei. 2016. Experimental and Numerical Investigations on Feasibility and Validity of Prismatic Rock Specimen in SHPB. Shock and Vibration،Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1119585
Modern Language Association (MLA)
Li, Xibing…[et al.]. Experimental and Numerical Investigations on Feasibility and Validity of Prismatic Rock Specimen in SHPB. Shock and Vibration No. 2016 (2016), pp.1-13.
https://search.emarefa.net/detail/BIM-1119585
American Medical Association (AMA)
Li, Xibing& Zhou, Tao& Li, Diyuan& Wang, Zewei. Experimental and Numerical Investigations on Feasibility and Validity of Prismatic Rock Specimen in SHPB. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-13.
https://search.emarefa.net/detail/BIM-1119585
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119585