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

Heitor L. Ornaghi Jr, José Humberto S. Almeida Jr*, Francisco M. Monticeli, Roberta M. Neves, Maria Odila H. Cioffi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)
3 Downloads (Pure)

Abstract

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 behavior. 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.
Original languageEnglish
Number of pages15
JournalMechanics of Time-Dependent Materials
Early online date07 Sep 2020
DOIs
Publication statusEarly online date - 07 Sep 2020
Externally publishedYes

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