Investigation of damage accumulation during unsteady low-cycle loading under stress control

Daunis, M. A.; Stasyunas, R. A.

doi:10.1007/bf01528746

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2008

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“…The parameters of cyclic stress-strain curves are obtained experimentally. To determine these parameters in each half-cycle, the relations given in [2,6] are used. The parameters of the S ik -versus-e ik curve are determined from the equation of the generalized cyclic stress-strain curve: …”

Section: Introductionmentioning

confidence: 99%

Stress-strain state and durability of mechanically inhomogeneous welds under low-cycle loading

Bražėnas

Daunis

2008

Int Appl Mech

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Relations are proposed for the determination of the stress-strain state, strength, and life of butt welds with mild and hard interlayers under cyclic elastoplastic tension-compression. The accumulation of cyclic and quasistatic damages is determined with allowance for the redistribution of the cyclic elastoplastic strains and hardness of the stress state due to changes in the cyclic properties of separate regions of welds. The theoretical distribution of cyclic strains and the durability of welds under cyclic elastoplastic loading are supported by experimental data

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Section: Introductionmentioning

confidence: 99%