Dynamic analysis of scarf adhesive joints in CFRP composites modified with Al2O3-nanoparticles under fatigue loading at different temperatures
作者： U.A. Khashaba
DOI: 10.1016/J.COMPOSITESA.2021.106277
关键词:
摘要: Abstract Fatigue tests were conducted on scarf adhesive joints (SAJs) with composite substrates at room temperature (RT) and 50 °C. The layer was modified Al2O3-nanoparticles. Dynamic parameters such as damping factor, storage modulus, dissipated energy potential (Up) measured from the stress–strain hysteresis loops of SAJs aim knowing which ones are best for early prediction joint collapse. Incorporation Al2O3-nanoparticles into improves fatigue strength by about 4.8 24.5% RT 50 °C respectively. glass transition improved 8.3% thus, Al2O3-SAJs decreased 5.4% in return 20.3% NE-SAJs. variation Up life is more pronounced compared to other dynamic can be modeled monitor integrity preventing their catastrophic failure.
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