Time-temperature behavior of carbon/epoxy laminates under creep loading

Heitor L. Ornaghi, José Humberto S. Almeida, Francisco M. Monticeli, Roberta M. Neves, Maria Odila H. Cioffi
2020 Mechanics of Time-Dependent Materials  
The time-temperature creep behavior of advanced composite laminates is herein determined through a comprehensive set of experiments and analytical modeling. A complete structure versus property relationship is determined through a wide range of temperature and applied stress levels at the three states of the composite: glassy, glass transition, and rubbery regions. Weibull, Eyring, Burger, and Findley models are employed to predict the experimental data and to better elucidate the material
more » ... ior. Experimental creep tests are carried out under ten min and two days aiming at calibrating fitting parameters, which are essential to validate short-term creep tests. The Weibull and Eyring models are more suitable for determining the time-temperature superposition (TTS) creep response in comparison to the Burger and Findley models.
doi:10.1007/s11043-020-09463-z fatcat:wbz727p45re25g5jkiaaepwkpm