Nonlinear viscoelastic behavior of active fiber composites

Vahid Tajeddini, Hassene Ben Atitallah, Anastasia Muliana, Zoubeida Ounaies

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In the present study, viscoelastic response of an active fiber composite (AFC) is investigated by conducting stress relaxation and creep deformation tests, and the quasi-linear viscoelastic (QLV) constitutive model is used to describe the viscoelastic response of the AFC. The AFC under study consists of unidirectional long piezoelectric ceramic fibers embedded in an epoxy polymer, encapsulated between two Kapton layers with interdigitated surface electrodes. The relaxation and creep experiments are performed by loading the AFC samples along the longitudinal axis of the fibers, under several strain and stress levels at three temperatures, namely 25° C, 50° C, and 75° C. The experimental results reveal the nonlinear viscoelastic behavior of the composite. Next, simulation and prediction of the viscoelastic response, including stress relaxation and creep deformation of the material, are done by using semi-analytical QLV model in which a relaxation time-dependent function is used, which also depends on strain and temperature. The results from the model are compared with those from the experiments. In general, the experimental and simulation results are in good agreement, except in the case of some of the creep responses, where considerable discrepancies are seen between the experimental and analytical approaches. Possible reasons for these differences are discussed in details.

Original languageEnglish (US)
Article number021005
JournalJournal of Engineering Materials and Technology, Transactions of the ASME
Volume136
Issue number2
DOIs
StatePublished - Apr 1 2014

Fingerprint

fiber composites
Creep
Fibers
stress relaxation
Composite materials
Stress relaxation
ceramic fibers
Kapton (trademark)
piezoelectric ceramics
Ceramic fibers
Piezoelectric ceramics
Constitutive models
simulation
relaxation time
Relaxation time
Polymers
conduction
Experiments
composite materials
fibers

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

@article{1003b07ace2542b18c08bd60c0893ce6,
title = "Nonlinear viscoelastic behavior of active fiber composites",
abstract = "In the present study, viscoelastic response of an active fiber composite (AFC) is investigated by conducting stress relaxation and creep deformation tests, and the quasi-linear viscoelastic (QLV) constitutive model is used to describe the viscoelastic response of the AFC. The AFC under study consists of unidirectional long piezoelectric ceramic fibers embedded in an epoxy polymer, encapsulated between two Kapton layers with interdigitated surface electrodes. The relaxation and creep experiments are performed by loading the AFC samples along the longitudinal axis of the fibers, under several strain and stress levels at three temperatures, namely 25° C, 50° C, and 75° C. The experimental results reveal the nonlinear viscoelastic behavior of the composite. Next, simulation and prediction of the viscoelastic response, including stress relaxation and creep deformation of the material, are done by using semi-analytical QLV model in which a relaxation time-dependent function is used, which also depends on strain and temperature. The results from the model are compared with those from the experiments. In general, the experimental and simulation results are in good agreement, except in the case of some of the creep responses, where considerable discrepancies are seen between the experimental and analytical approaches. Possible reasons for these differences are discussed in details.",
author = "Vahid Tajeddini and Atitallah, {Hassene Ben} and Anastasia Muliana and Zoubeida Ounaies",
year = "2014",
month = "4",
day = "1",
doi = "10.1115/1.4026474",
language = "English (US)",
volume = "136",
journal = "Journal of Engineering Materials and Technology, Transactions of the ASME",
issn = "0094-4289",
publisher = "American Society of Mechanical Engineers(ASME)",
number = "2",

}

Nonlinear viscoelastic behavior of active fiber composites. / Tajeddini, Vahid; Atitallah, Hassene Ben; Muliana, Anastasia; Ounaies, Zoubeida.

In: Journal of Engineering Materials and Technology, Transactions of the ASME, Vol. 136, No. 2, 021005, 01.04.2014.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Nonlinear viscoelastic behavior of active fiber composites

AU - Tajeddini, Vahid

AU - Atitallah, Hassene Ben

AU - Muliana, Anastasia

AU - Ounaies, Zoubeida

PY - 2014/4/1

Y1 - 2014/4/1

N2 - In the present study, viscoelastic response of an active fiber composite (AFC) is investigated by conducting stress relaxation and creep deformation tests, and the quasi-linear viscoelastic (QLV) constitutive model is used to describe the viscoelastic response of the AFC. The AFC under study consists of unidirectional long piezoelectric ceramic fibers embedded in an epoxy polymer, encapsulated between two Kapton layers with interdigitated surface electrodes. The relaxation and creep experiments are performed by loading the AFC samples along the longitudinal axis of the fibers, under several strain and stress levels at three temperatures, namely 25° C, 50° C, and 75° C. The experimental results reveal the nonlinear viscoelastic behavior of the composite. Next, simulation and prediction of the viscoelastic response, including stress relaxation and creep deformation of the material, are done by using semi-analytical QLV model in which a relaxation time-dependent function is used, which also depends on strain and temperature. The results from the model are compared with those from the experiments. In general, the experimental and simulation results are in good agreement, except in the case of some of the creep responses, where considerable discrepancies are seen between the experimental and analytical approaches. Possible reasons for these differences are discussed in details.

AB - In the present study, viscoelastic response of an active fiber composite (AFC) is investigated by conducting stress relaxation and creep deformation tests, and the quasi-linear viscoelastic (QLV) constitutive model is used to describe the viscoelastic response of the AFC. The AFC under study consists of unidirectional long piezoelectric ceramic fibers embedded in an epoxy polymer, encapsulated between two Kapton layers with interdigitated surface electrodes. The relaxation and creep experiments are performed by loading the AFC samples along the longitudinal axis of the fibers, under several strain and stress levels at three temperatures, namely 25° C, 50° C, and 75° C. The experimental results reveal the nonlinear viscoelastic behavior of the composite. Next, simulation and prediction of the viscoelastic response, including stress relaxation and creep deformation of the material, are done by using semi-analytical QLV model in which a relaxation time-dependent function is used, which also depends on strain and temperature. The results from the model are compared with those from the experiments. In general, the experimental and simulation results are in good agreement, except in the case of some of the creep responses, where considerable discrepancies are seen between the experimental and analytical approaches. Possible reasons for these differences are discussed in details.

UR - http://www.scopus.com/inward/record.url?scp=84893802156&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84893802156&partnerID=8YFLogxK

U2 - 10.1115/1.4026474

DO - 10.1115/1.4026474

M3 - Article

VL - 136

JO - Journal of Engineering Materials and Technology, Transactions of the ASME

JF - Journal of Engineering Materials and Technology, Transactions of the ASME

SN - 0094-4289

IS - 2

M1 - 021005

ER -