Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Miscellanea Vol. 13, No. 49 (2019)

A viscoelastic-viscoplastic model for a thermoplastic and sensitivity of its rheological parameters to the strain-rate

Author and affiliation details
  • Younès Saadallah Corresponding author University of Jijel ROR03kkfk814 sayounes@live.fr
  • Semcheddine Derfouf
  • Belhi Guerira
DOI
10.3221/IGF-ESIS.49.60
Pages
666-675
Published
Published inVol. 13, No. 49 (2019)Go to the issue

Abstract

The behavior of thermoplastics depends on several factors, mainly time and temperature. The present work is the subject of an analysis of the dependence of viscoelastic viscoplastic parameters of a model of rheological behavior at the time. The material considered in this study is a polyamide 6. The model of applied behavior is represented by the Kelvin-Voigt viscoelastic mechanism mounted in series with a viscoplastic branch of Bingham. Following a mathematical formulation of the equations governing the model, tensile tests at different strain rates are conducted. The model parameters are then identified by inverse analysis. The technique of genetic algorithms has been favored. A nonlinear dependence of these parameters on the rate of strain has been observed. The dependence function has been established by a nonlinear regression technique. The comparison of the experimental results with those obtained by the model reveals a satisfactory agreement, hence the validation of the approach adopted.

Keywords

Article history

  1. ReceivedUntil the next stage: 35 days
  2. Revision requestedUntil the next stage: 4 days
  3. RevisedUntil the next stage: 0 days
  4. AcceptedUntil the next stage: 35 days
  5. Published

How to cite

APA

Saadallah, Y., Derfouf, S., & Guerira, B. (2019). A viscoelastic-viscoplastic model for a thermoplastic and sensitivity of its rheological parameters to the strain-rate. Fracture and Structural Integrity, 13(49), 666–675. https://doi.org/10.3221/IGF-ESIS.49.60

IEEE

Y. Saadallah, S. Derfouf, and B. Guerira, “A viscoelastic-viscoplastic model for a thermoplastic and sensitivity of its rheological parameters to the strain-rate,” Fracture and Structural Integrity, vol. 13, no. 49, pp. 666–675, 2019, doi: 10.3221/IGF-ESIS.49.60.

MLA

Saadallah, Younès, et al. “A viscoelastic-viscoplastic model for a thermoplastic and sensitivity of its rheological parameters to the strain-rate.” Fracture and Structural Integrity, vol. 13, no. 49, 2019, pp. 666–675. https://doi.org/10.3221/IGF-ESIS.49.60.

Chicago

Saadallah, Younès, Semcheddine Derfouf, and Belhi Guerira. 2019. “A viscoelastic-viscoplastic model for a thermoplastic and sensitivity of its rheological parameters to the strain-rate.” Fracture and Structural Integrity 13 (49): 666–675. https://doi.org/10.3221/IGF-ESIS.49.60.

Harvard

Saadallah, Y., Derfouf, S. and Guerira, B. (2019) ‘A viscoelastic-viscoplastic model for a thermoplastic and sensitivity of its rheological parameters to the strain-rate’, Fracture and Structural Integrity, 13(49), pp. 666–675. doi: 10.3221/IGF-ESIS.49.60.

Vancouver

Saadallah Y, Derfouf S, Guerira B. A viscoelastic-viscoplastic model for a thermoplastic and sensitivity of its rheological parameters to the strain-rate. Fracture and Structural Integrity. 2019;13(49):666-675. doi:10.3221/IGF-ESIS.49.60

BibTeX

@article{saadallah2019, author = {Saadallah, Younès and Derfouf, Semcheddine and Guerira, Belhi}, title = {A viscoelastic-viscoplastic model for a thermoplastic and sensitivity of its rheological parameters to the strain-rate}, journal = {Fracture and Structural Integrity}, year = {2019}, volume = {13}, number = {49}, pages = {666--675}, doi = {10.3221/IGF-ESIS.49.60}, url = {https://doi.org/10.3221/IGF-ESIS.49.60}, issn = {1971-8993} }

RIS

TY - JOUR AU - Saadallah, Younès AU - Derfouf, Semcheddine AU - Guerira, Belhi TI - A viscoelastic-viscoplastic model for a thermoplastic and sensitivity of its rheological parameters to the strain-rate JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2019 DA - 2019/06/22 VL - 13 IS - 49 SP - 666 EP - 675 DO - 10.3221/IGF-ESIS.49.60 UR - https://doi.org/10.3221/IGF-ESIS.49.60 SN - 1971-8993 ER -

Licence

Copyright © 2019 Younès Saadallah, Semcheddine Derfouf, Belhi Guerira.

Copyright 
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