Remaining useful life prediction of laminated composite materials using thermoelastic stress analysis
Marques, Ricardo and Ünel, Mustafa and Yıldız, Mehmet and Suleman, Afzal (2019) Remaining useful life prediction of laminated composite materials using thermoelastic stress analysis. Composite Structures, 210 . pp. 381-390. ISSN 0263-8223 (Print) 1879-1085 (Online)
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Official URL: http://dx.doi.org/10.1016/j.compstruct.2018.10.047
Estimation of the remaining useful life (RUL) based on the elastic strain energy density using the non-contacting and full-field capabilities of Thermoelastic Stress Analysis (TSA) was applied to E-glass fiber-reinforced polymers (GFRPs) subjected to high-cycle fatigue loading conditions. A quantitative prediction was successfully attained during the material's intermediate and final fatigue life phases. The initial state of the specimen was used as the reference data for defining a damage parameter that enabled the detection of visually imperceptible subsurface cracks.
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