Abstract
The work considers the quantitative assessment of the accumulation of scattered damage as a multi-scale and multi-stage phenomenon under elastic-plastic loading, which leads to the degradation of the physical and mechanical properties of structural materials, which is expressed in the change of the modulus of elasticity G and E. The paper proposes a criterion of damage, containing the effect of damage on the service life of the structure under an external complex load. The physics of the process of kinetics of damage accumulation suggests a factor of structural changes as a result of loosening of the material under load for separation and shearing of the representative element in the most loaded section.
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