Determining the effect of voids in GFRP on the damage behaviour under compression loading using acoustic emission

Journal
Composites Part B: Engineering  
Volume
70
Start Page
184
End Page
188
Citation
Composites Part B: Engineering (70): 184-188 (2015-03-01)
Publisher DOI
10.1016/j.compositesb.2014.11.010
Scopus ID
2-s2.0-84914689080
Publisher
Elsevier
Defects in composite structures, such as voids, have a major influence on the damage behaviour and mechanical properties. Based on the conducted experiments the influence of voids on the mechanical properties of multi-axial glass fibre non crimp fabric composites under quasi-static compression load was examined. Optical in-situ inspection and acoustic emission measurement were applied to detect the failure behaviour during compression tests, while paying special attention to the early stages of damage appearance where the Young's modulus is determined. The specimens were produced by resin transfer moulding with different processing parameters to obtain various void contents and morphologies.
Subjects
A. Fabrics/textiles
B. Mechanical properties
B. Porosity
D. Acoustic emission
DDC Class
600: Technik
More Funding Information
The authors are grateful to the German Research Foundation (DFG) for supporting this work as part of the project SCHU 926/16-2 within PAK267.