Time-frequency analysis of acoustic emission signals generated by the Glass Fibre Reinforced Polymer Composites during the tensile test

3rd International Conference on Innovative Materials, Structures and Technologies

wit, G.^1 ; Adamczak, A.^1 ; Krampikowska, A.^1

Kielce University of Technology, Faculty of Civil Engineering and Architecture, Aleja Tysiclecia Pastwa, Polskiego 7, Kielce

25-314, Poland^1

关键词: Acoustic emission method;    Acoustic emission signal;    Fibre-reinforced polymer composites;    Glass fibre reinforced composites;    Glass fibre reinforced polymers;    Nondestructive methods;    Technical conditions;    Time frequency analysis;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/251/1/012002/pdf
DOI  :  10.1088/1757-899X/251/1/012002

来源: IOP

【 摘 要 】

Fibre reinforced polymer composites are currently dominating in the composite materials market. The lack of detailed knowledge about their properties and behaviour in various conditions of exposure under load significantly limits the broad possibilities of application of these materials. Occurring and accumulation of defects in material during the exploitation of the construction lead to the changes of its technical condition. The necessity to control the condition of the composite is therefore justified. For this purpose, non-destructive method of acoustic emission can be applied. This article presents an example of application of acoustic emission method based on time analysis and time-frequency analysis for the evaluation of the progress of the destructive processes and the level of degradation of glass fibre reinforced composite tapes that were subject to tensile testing.