Experimental Study on the Tensile Properties of Rock-Mortar Interface under Different Strain Rates
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-09-03
Country of Publication
Egypt
No. of Pages
10
Abstract EN
In this paper, an experimental study was carried out on a rock-mortar interface specimen under three different strain rates (10−6, 10−5, and 10−4 s−1) using the MTS322 electrohydraulic servo loading system, and a new constitutive relation function of fictitious crack model (FCM) according to the axial-stress-crack-width curves of the rock-mortar interface is established, because the traditional nonlinear softening function easily distorts, shakes, and so cannot describe the damage-evolution process of the rock-mortar interface accurately.
Through the use of a precise servo actuator system and three extensometers measured axial-stress-crack-width curves, it is shown that the rock-mortar interface is very sensitive to the strain rate.
The tensile strength increases with strain rate, the crack width decreases at the same time, and the axial-stress-crack-width curves gradually evolve from a concave-downward trend to a linear decreasing trend.
At the same time, the new constitutive relation function can reflect the tensile strength, crack width, and the downward trend of the rock-mortar interface more accurately.
American Psychological Association (APA)
Wu, Nan& Zhu, Zhen-De& He, Zhilei. 2018. Experimental Study on the Tensile Properties of Rock-Mortar Interface under Different Strain Rates. Advances in Materials Science and Engineering،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1121027
Modern Language Association (MLA)
Wu, Nan…[et al.]. Experimental Study on the Tensile Properties of Rock-Mortar Interface under Different Strain Rates. Advances in Materials Science and Engineering No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1121027
American Medical Association (AMA)
Wu, Nan& Zhu, Zhen-De& He, Zhilei. Experimental Study on the Tensile Properties of Rock-Mortar Interface under Different Strain Rates. Advances in Materials Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1121027
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1121027