Conference Proceedings

Second International Conference on Advances in Mechanical and Robotics Engineering- AMRE 2014

MECHANICAL BEHAVIOR OF MWCNT REINFORCED GFRP COMPOSITES UNDER FATIGUE CONSTANT AMPLITUDE LOADINGS WITH THE PRESENCE OF ARTIFICIAL NOTCHES

Author(s) : ACHILLES VAIRIS, ILONA LAZARIDOU, MARKOS PETOUSIS, NIKOLAOS D. ALEXOPOULOS

Abstract

This work studies the effect of artificial surface notches on glass fiber reinforced polymers (GFRPs) under constant amplitude fatigue loadings and for various nano-reinforced matrices. Different concentrations of Multi-Wall Carbon Nanotubes (MWCNTs) were added to the resin before the vacuum assisted resin infusion (VARI) of the composites. Three different MWCNT nanocomposites were manufactured that had concentrations namely 0.5, 0.75 and 3.0 wt% MWCNTs. Before testing, an artificial notch was introduced and two different regions of the composite was continuous monitored during mechanical testing: (a) healthy (without defect) and (b( notched (with the presence of defect). Fatigue tests were performed and with different fatigue maximum stress levels so as to address all fatigue regimes. It was found that a sudden increase takes place on the transition of stage III of the fatigue mechanism. This sudden increase point in the electrical resistance change was applied maximum stress as well as wt% MWCNT concentration (different matrix) dependant.

Conference Title : Second International Conference on Advances in Mechanical and Robotics Engineering- AMRE 2014
Conference Date(s) : 25 - 26 October 2014
Place : Hotel Novotel Zurich City-West, 8005 Zurich, Switzerland
No fo Author(s) : 4
DOI : 10.15224/978-1-63248-031-6-167
Page(s) : 102 - 105
Electronic ISBN : 978-1-63248-031-6
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