Abstract
Energy-coupled stress and strain measures are defined in Euler coordinates. They are used to analyze the relationship between the first invariants of the stress and strain tensors for linearity and to determine strains at which the plastic component of the first strain invariant can be neglected. It is established that this relationship remains linear within an engineering plastic-strain tolerance of 0.2% irrespective of the value of strain intensity, which depends on the type of material and its stress state
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Translated from Prikladnaya Mekhanika, Vol. 43, No. 3, pp. 60–72, March 2007.
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Shevchenko, Y.N., Terekhov, R.G. & Tormakhov, N.N. Linear relationship between the first invariants of the stress and strain tensors in theories of plasticity with strain hardening. Int Appl Mech 43, 291–302 (2007). https://doi.org/10.1007/s10778-007-0024-8
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DOI: https://doi.org/10.1007/s10778-007-0024-8