Fatigue damage in notched GFR composites with thermal and digital image measurements

Abstract

Complex time dependent damage phenomena are characteristic of Composites under fatigue; this is due to material structural heterogeneity and fibre/matrix interactions. Fatigue life is mainly determined by the progressive damage evolution, difficult to be modeled with numerical tools or mathematical frames. Experimental methods are to be applied to achieve correct information about the evolving fatigue damage and the authors propose a methodology based on Digital and Thermal Image analyses, to measure on notched GFRC specimens the dissipative sources in terms of temperature and deformation based data; starting from previous works, the measurements procedures were improved for these techniques, in order to obtain useful results with notched composites and capable to detect different damage states on specimen surface.


Tutti gli autori

  • S. Giancane , F.W. Panella , V. Dattoma

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Anno di pubblicazione

2012

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