ESDU TM 212
ESDU TECHNICAL MEMORANDUM
Rigidity modulus for interface material in wet conditions
Abstract:
Research has shown that the absorption of water results in a reduction of the moduli of elasticity and rigidity of rubber compounds at temperatures above that for glass transition. This Technical Memorandum considers the application of these principles to the layer of material at the tyre-runway interface for an aircraft-type tyre operating on a water-covered runway surface, an area of study which hitherto has been neglected.
The development of an empirical relationship for determining the 'wet' modulus of rigidity of an aircraft-type tyre operating on a water-covered surface is outlined. The model encompasses parameters such as the modulus of rigidity of the material at the tyre-runway interface for operations on dry surfaces, water depth, runway macro- and micro-texture values, tyre bearing pressure and tyre speed.
The modelling has been found to reproduce the trends observed in experimental data.
Indexed under:
- None
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