Abstract
A technique for the determination of the axisymmetric thermoviscoelastoplastic state of laminated thin shells made of a damageable material is developed. The technique is based on the kinematic equations of the theory of thin shells that account for transverse shear strains. The thermoviscoplastic equations, which describe the deformation of a shell element along paths of small curvature, are used as the constitutive equations. The equivalent stress that appears in the kinetic equations of damage and creep is determined from a failure criterion that accounts for the stress mode. The thermoviscoplastic deformation of a two-layer shell that models an element of a rocket engine nozzle is considered as an example
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Translated from Prikladnaya Mekhanika, Vol. 44, No. 4, pp. 87–100, April 2008.
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Galishin, A.Z. Axisymmetric thermoviscoelastoplastic state of thin laminated shells made of a damageable material. Int Appl Mech 44, 431–441 (2008). https://doi.org/10.1007/s10778-008-0055-9
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DOI: https://doi.org/10.1007/s10778-008-0055-9