Experimental crack length detection in concrete pavement using point strain sensors 机翻标题: 暂无翻译,请尝试点击翻译按钮。

会议集名/来源
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019: SPIE Smart Structures + Nondestructive Evaluation Conference, 4-7 March 2019, Denver, Colorado, United States
出版年
2019
页码
1097023.1-1097023.10
会议地点
Denver
作者单位
Dept. of Civil and Environmental Engineering, North Dakota State University, Fargo, UnitedStates, 58108-6050, U.S.ADept. of Civil and Environmental Engineering, North Dakota State University, Fargo, UnitedStates, 58108-6050, U.S.A ying.huang@ndsu.eduDept. of Construction Management and Engineering ,North Dakota State University, Fargo,United States, 58108-6050, U.S.AUpper Great Plains Transportation Institute, North Dakota State University, Fargo, UnitedStates, 58108-6050, U.S.AUpper Great Plains Transportation Institute, North Dakota State University, Fargo, UnitedStates, 58108-6050, U.S.A
作者
Mohanad Alshandah;Ying Huang;Jerry Gao;Pan Lu;Denver Tolliver
摘要
In concrete pavements, one of the main deteriorations and damages is tensile cracking, which can destroy concrete pavement frame when sub surface cracks propagate to the surface because it induces water penetration in pavement structure and foundation. However, detecting the propagation, especially the crack length, of hidden cracks inside pavements is very challenging. This paper presents the results of an experimental investigation conducted to detect crack length in concrete using point strain sensors in the bottom of the simulated pavements in a bending test with four-point loading. The linear elastic fracture mechanics is used in this study to calculate the crack lengths based on the collected data from point sensors. Results for the crack length detection in experiments showed a measurement accuracy of 88.85%, 87.7%, and 81.08 % for the three specimens tested, respectively. This study provides an alternative technique to detect hidden bottom-up cracks in concrete pavements.
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