ACOUSTIC EMISSION SOURCE LOCATION IN I GIRDER BASED ON EXPERIMENTAL STUDY AND LAMB WAVE PROPAGATION SIMULATION. Issue 5 (9th March 2020)

• Record Type: Journal Article
• Authors: Cheng, Lu; Xin, Haohui; Veljkovic, Milan
• Is Part Of: Ce/papers. Volume 3:Issue 5/6(2019)
• Page Start: 3
• Page End: 12
• Publication Date: 2020-03-09
• Subjects: Civil engineering -- Periodicals; 624
• DOI: 10.1002/cepa.1176
• Languages: English
• ISSNs: 2509-7075

Abstract

Abstract: Acoustic Emission (AE) is used in various fields of engineering and recently has been gained increasing attention in crack detection of cyclically loaded engineering structures. The crack location strategies are rather complicated for realistic structures with complex geometry. In this paper, pencil leads breaking (PLB) experiments and finite element simulation of lamb wave propagation are conducted to give a rational interpretation on acoustic wave propagation within composite structures. Identification of the fundamental extensional mode (S0 ) and flexural mode (A0 ) is successfully carried out. The proposed FE models are proven to be a suitable alternative/complement to the experiments, in the monitoring of realistic structures.