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Type: Conference paper
Title: Ultrasonic monitoring of compressive damage evolution in concrete
Author: Khanna, A.
Kotooussov, A.
Ng, C.
Rose, L.F.
Citation: Advances in mechanics: failure, deformation, fatigue, waves and monitoring: Proceedings of The 11th International Conference on Structural Integrity and Failure, 2018 / Dyskin, A., Pasternak, E. (ed./s), pp.67-72
Publisher: Australian Fracture Group
Issue Date: 2018
ISBN: 9781740524094
Conference Name: International Conference on Structural Integrity and Failure (3 Dec 2018 - 6 Dec 2018 : Perth)
Editor: Dyskin, A.
Pasternak, E.
Statement of
Aditya Khanna, Andrei Kotousov, Ching-Tai Ng and L. R. Francis Rose
Abstract: This paper presents the outcomes of an experimental study conducted on a short concrete column loaded to failure under uniaxial compression. Piezoceramic transducers bonded to the free surfaces of the specimen were used for ultrasonic inspection during the progressive loading. The evolution of damage was monitored by means of change in ultrasonic wave velocity and scaling subtraction method, with the aim to highlight the capabilities and limitations of these approaches. The results show that the change in the nonlinear parameter derived by the scaling subtraction method is over two orders of magnitude greater than the relative change in the Rayleigh wave speed, thereby indicating the much greater sensitivity of the nonlinear ultrasonics approach for damage detection.
Rights: © The authors
Appears in Collections:Aurora harvest 8
Mechanical Engineering conference papers

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