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Experimental Investigation of Sandstone under Cyclic Loading: Damage Assessment Using Ultrasonic Wave Velocities and Changes in Elastic Modulus
Joint Authors
Feng, Xiaowei
Qian, Deyu
Yang, Sen
Pan, Dongjiang
Zhang, Nong
Kan, Jiaguang
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-04-11
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
This laboratory study investigated the damage evolution of sandstone specimens under two types of cyclic loading by monitoring and analyzing changes in the elastic moduli and the ultrasonic velocities during loading.
During low-level cyclic loading, the stiffness degradation method was unable to describe the damage accumulations but the ultrasonic velocity measurements clearly reflected the damage development.
A crack density parameter is introduced in order to interpret the changes in the tangential modulus and the ultrasonic velocities.
The results show the following.
(1) Low-level cyclic loading enhanced the anisotropy of the cracks.
This results from the compression of intergranular clay minerals and fatigue failure.
(2) Irreversible damage accumulations during cyclic loading with an increasing upper stress limit are the consequence of brittle failure in the sandstone’s microstructure.
American Psychological Association (APA)
Yang, Sen& Zhang, Nong& Feng, Xiaowei& Kan, Jiaguang& Pan, Dongjiang& Qian, Deyu. 2018. Experimental Investigation of Sandstone under Cyclic Loading: Damage Assessment Using Ultrasonic Wave Velocities and Changes in Elastic Modulus. Shock and Vibration،Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215452
Modern Language Association (MLA)
Yang, Sen…[et al.]. Experimental Investigation of Sandstone under Cyclic Loading: Damage Assessment Using Ultrasonic Wave Velocities and Changes in Elastic Modulus. Shock and Vibration No. 2018 (2018), pp.1-13.
https://search.emarefa.net/detail/BIM-1215452
American Medical Association (AMA)
Yang, Sen& Zhang, Nong& Feng, Xiaowei& Kan, Jiaguang& Pan, Dongjiang& Qian, Deyu. Experimental Investigation of Sandstone under Cyclic Loading: Damage Assessment Using Ultrasonic Wave Velocities and Changes in Elastic Modulus. Shock and Vibration. 2018. Vol. 2018, no. 2018, pp.1-13.
https://search.emarefa.net/detail/BIM-1215452
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1215452