Application of Principles of Theory of Damage Accumulation to Calculation of Asphalt-Concrete Coatings

[摘要] It was found that, when exposed to the repeated loads, the asphalt concrete pavement of roads accumulates damage which must be considered in their calculation. By entering the damage measuring theory (L.M. Kachanova continuity, damage Rabotnova Y.N.) and applying the principle of equivalence of a continuous state of stress and damage caused by media the authors modified the criteria proposed by Pisarenko-Lebedev and Drucker-Prager. Such modified criteria take into account the effect of damage accumulation in the calculation of asphalt concrete pavement on the tensile strength in bending and shear. To determine the functional dependence of damage and continuity on the number of applied loads, the authors used the principle of energy equivalence for continuous and damaged media.

[发布机构] Faculty Roads and Bridges, Siberian State Automobile and Highway University, Mira Avenue, 5, Omsk; 644080, Russia^1

[学科分类] 土木及结构工程学

[关键词] Concrete coatings;Continuous state;Damage accumulation;Damage measuring;Energy equivalence;Functional dependence;Principle of equivalence;Repeated loads