Affiliations: [a] Shaanxi ERC of NDT and Structural Integrity Evaluation, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an, China | [b] State Key Laboratory of Digital Manufacturing Equipment & Technology, Wuhan, China | [c] School of Aerospace, Transport and Manufacturing, Cranfield University, Cranfield, UK
Correspondence:
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Corresponding authors: Cuixiang Pei, Shaanxi ERC of NDT and Structural Integrity Evaluation, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an, 710049, China; and State Key Laboratory of Digital Manufacturing Equipment & Technology, Wuhan, 430074, China. E-mail: pei.cx@mail.xjtu.edu.cn. Zhenmao Chen, Shaanxi ERC of NDT and Structural Integrity Evaluation, State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University, Xi’an, 710049, China. E-mail: chenzm@mail.xjtu.edu.cn
Abstract: The laser array spot thermography (LAST) is a fully non-contact and non-destructive method for the inspection of surface cracks with high efficiency. In this study, the detection capability of this method for the inspection of surface cracks in structures with curved surfaces is experimentally studied. The influence of the inspection angle on the crack imaging results is also investigated. The experiment results show that cracks in surface of the pipes with different dimeters can be detected and imaged by LAST.
