The Bodner-Partom nonisothermal flow model and the generalized method of harmonic linearization are used to calculate the complex shear modulus and compliance for AMg-6 aluminum alloy. The strain-and stress-controlled cycles of loading in the temperature range 20–400°C are considered. The correspondence between the shear modulus and the compliance is studied. It is similar to the inverse proportionality condition in the theory of linear viscoelasticity. It is established that representing the modulus and compliance as functions of the strain amplitude is better than as functions of the stress amplitude due to the universal description of the characteristics for soft and hard cycles and high accuracy of correspondence
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Translated from Prikladnaya Mekhanika, Vol. 44, No. 8, pp. 52–63, August 2008.
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Chervinko, O.P., Senchenkov, I.K. Correspondence principles for complex shear characteristics in a nonisothermal model of monoharmonic approximation for physically nonlinear materials. Int Appl Mech 44, 872–881 (2008). https://doi.org/10.1007/s10778-008-0103-5
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DOI: https://doi.org/10.1007/s10778-008-0103-5