Heavy Aircraft Damage to Rigid Airport Pavementsby D. V. Ramsamooj,
G. S. Lin,
Abstract: A theoretical solution is presented for the damage caused by heavy aircraft at the transverse joints in a rigid airport pavement. Large stresses in the subgrade generate significant permanent deformation in the subgrade, which increase the stresses in the concrete slab. This in turn accelerates the rate of crack growth, which then causes more permanent deformation in the subgrade, so that there is a continuous interaction between the two types of distress which may lead to premature deterioration of the pavement. Fracture mechanics is used for the fatigue crack growth in the concrete, and an elastoplastic constitutive model for the rate of development of the permanent deformation in the subgrade.
Subject Headings: Airport and airfield pavements | Pavement condition | Concrete pavements | Subgrades | Cracking | Deformation (mechanics) | Damage (structural) | Aircraft and spacecraft
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