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

doi:10.1007/s11043-020-09463-z

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

^*Corresponding author for this work

Department of Energy and Mechanical Engineering

Research output: Contribution to journal › Article › Scientific › peer-review

24 Citations (Scopus)

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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 language	English
Number of pages	15
Journal	MECHANICS OF TIME-DEPENDENT MATERIALS
DOIs	https://doi.org/10.1007/s11043-020-09463-z
Publication status	Published - 7 Sept 2020
MoE publication type	A1 Journal article-refereed

Keywords

Advanced composites
Creep
Time-temperature superposition
Viscoelasticity

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ENG_Ornaghi_et_al_Time-temperature_behavior_Mech_Time-Depend_MaterFinal published version, 1.88 MBLicence: CC BY

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title = "Time-temperature behavior of carbon/epoxy laminates under creep loading",

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.",

keywords = "Advanced composites, Creep, Time-temperature superposition, Viscoelasticity",

author = "Ornaghi, {Heitor L.} and Almeida, {Jos{\'e} Humberto S.} and Monticeli, {Francisco M.} and Neves, {Roberta M.} and Cioffi, {Maria Odila H.}",

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doi = "10.1007/s11043-020-09463-z",

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TY - JOUR

T1 - Time-temperature behavior of carbon/epoxy laminates under creep loading

AU - Ornaghi, Heitor L.

AU - Almeida, José Humberto S.

AU - Monticeli, Francisco M.

AU - Neves, Roberta M.

AU - Cioffi, Maria Odila H.

PY - 2020/9/7

Y1 - 2020/9/7

N2 - 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.

AB - 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.

KW - Advanced composites

KW - Creep

KW - Time-temperature superposition

KW - Viscoelasticity

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DO - 10.1007/s11043-020-09463-z

M3 - Article

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JO - MECHANICS OF TIME-DEPENDENT MATERIALS

JF - MECHANICS OF TIME-DEPENDENT MATERIALS

ER -

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

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