The analytic response for the Cauchy extra stress in large amplitude oscillatory shear (LAOS) is computed from a constitutive model for isotropic incompressible materials, including viscoelastic contributions, and relaxation time. Three cases of frame invariant derivatives are considered: lower, upper, and Jaumann. In the first two cases, the shear stress at steady-state includes the first and third harmonics, and the difference of normal stresses includes the zeroth, second, and fourth harmonics. In the Jaumann case, the stress components are obtained in integral form and are approximated with a Fourier series. The behavior of the coefficients is studied parametrically, as a function of relaxation time and constitutive parameters. Further, the shear stress and the difference of normal stresses are studied as functions of shear strain and shear rate, and are visualized by means of the elastic and viscous Lissajous–Bowditch (LB) plots. Sample results in the Pipkin plane are reported, and the influence of the constitutive parameters in each case is discussed.
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December 2017
Research-Article
Large Amplitude Oscillatory Shear From Viscoelastic Model With Stress Relaxation
Alberto Garinei,
Alberto Garinei
Department of Sustainability Engineering,
Guglielmo Marconi University,
Via Plinio 44,
Rome 00193, Italy
e-mail: a.garinei@unimarconi.it
Guglielmo Marconi University,
Via Plinio 44,
Rome 00193, Italy
e-mail: a.garinei@unimarconi.it
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Francesco Castellani,
Francesco Castellani
Department of Engineering,
University of Perugia,
Perugia 06125, Italy
e-mail: francesco.castellani@unipg.it
University of Perugia,
Via G. Duranti 93
,Perugia 06125, Italy
e-mail: francesco.castellani@unipg.it
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Davide Astolfi,
Davide Astolfi
Department of Engineering,
University of Perugia,
Perugia 06125, Italy
e-mail: davide.astolfi@unipg.it
University of Perugia,
Via G. Duranti 93
,Perugia 06125, Italy
e-mail: davide.astolfi@unipg.it
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Edvige Pucci,
Edvige Pucci
Professor
Department of Engineering,
University of Perugia,
Perugia 06125, Italy
e-mail: edvige.pucci@unipg.it
Department of Engineering,
University of Perugia,
Via G. Duranti 93
,Perugia 06125, Italy
e-mail: edvige.pucci@unipg.it
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Lorenzo Scappaticci
Lorenzo Scappaticci
Department of Sustainability Engineering,
Guglielmo Marconi University,
Rome 00193, Italy
e-mail: l.scappaticci@unimarconi.it
Guglielmo Marconi University,
Via Plinio 44
,Rome 00193, Italy
e-mail: l.scappaticci@unimarconi.it
Search for other works by this author on:
Alberto Garinei
Department of Sustainability Engineering,
Guglielmo Marconi University,
Via Plinio 44,
Rome 00193, Italy
e-mail: a.garinei@unimarconi.it
Guglielmo Marconi University,
Via Plinio 44,
Rome 00193, Italy
e-mail: a.garinei@unimarconi.it
Francesco Castellani
Department of Engineering,
University of Perugia,
Perugia 06125, Italy
e-mail: francesco.castellani@unipg.it
University of Perugia,
Via G. Duranti 93
,Perugia 06125, Italy
e-mail: francesco.castellani@unipg.it
Davide Astolfi
Department of Engineering,
University of Perugia,
Perugia 06125, Italy
e-mail: davide.astolfi@unipg.it
University of Perugia,
Via G. Duranti 93
,Perugia 06125, Italy
e-mail: davide.astolfi@unipg.it
Edvige Pucci
Professor
Department of Engineering,
University of Perugia,
Perugia 06125, Italy
e-mail: edvige.pucci@unipg.it
Department of Engineering,
University of Perugia,
Via G. Duranti 93
,Perugia 06125, Italy
e-mail: edvige.pucci@unipg.it
Lorenzo Scappaticci
Department of Sustainability Engineering,
Guglielmo Marconi University,
Rome 00193, Italy
e-mail: l.scappaticci@unimarconi.it
Guglielmo Marconi University,
Via Plinio 44
,Rome 00193, Italy
e-mail: l.scappaticci@unimarconi.it
Contributed by the Applied Mechanics Division of ASME for publication in the JOURNAL OF APPLIED MECHANICS. Manuscript received July 17, 2017; final manuscript received October 10, 2017; published online October 26, 2017. Assoc. Editor: Thomas Siegmund.
J. Appl. Mech. Dec 2017, 84(12): 121008 (11 pages)
Published Online: October 26, 2017
Article history
Received:
July 17, 2017
Revised:
October 10, 2017
Citation
Garinei, A., Castellani, F., Astolfi, D., Pucci, E., and Scappaticci, L. (October 26, 2017). "Large Amplitude Oscillatory Shear From Viscoelastic Model With Stress Relaxation." ASME. J. Appl. Mech. December 2017; 84(12): 121008. https://doi.org/10.1115/1.4038186
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