The purpose of this study was to analyse the fatigue resistance results of nanostructured composite materials made with an epoxy matrix (DGEBF-CAF) reinforced with 5%wt of elastomeric nanoparticles with an average diameter of 200 nm (M-E resin). The tests were conducted at variable load and frequency using Rotating Bending (R-B) and Tensile-Tensile (T-T) tests, and the results were compared to those obtained with pure resin (N-E resin). The occurrence of thermal fatigue phenomena during the tests was monitored using a thermal camera. The results confirm that pure epoxy resin exhibits poor crack propagation resistance due to its low ductility and toughness, and the introduction of a second phase leads to an improvement of approximately 3 times in T-T tests and 5 times in R-B tests.
On Fatigue Behavior Nanostructured Epoxy Composite Materials
S. Garofalo
;C. Morano;F. Furgiuele;L. Pagnotta
2023-01-01
Abstract
The purpose of this study was to analyse the fatigue resistance results of nanostructured composite materials made with an epoxy matrix (DGEBF-CAF) reinforced with 5%wt of elastomeric nanoparticles with an average diameter of 200 nm (M-E resin). The tests were conducted at variable load and frequency using Rotating Bending (R-B) and Tensile-Tensile (T-T) tests, and the results were compared to those obtained with pure resin (N-E resin). The occurrence of thermal fatigue phenomena during the tests was monitored using a thermal camera. The results confirm that pure epoxy resin exhibits poor crack propagation resistance due to its low ductility and toughness, and the introduction of a second phase leads to an improvement of approximately 3 times in T-T tests and 5 times in R-B tests.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
