ДЕФОРМАЦІЙНИЙ РЕЛЬЄФ ЯК ІНДИКАТОР ВПЛИВУ ТЕМПЕРАТУРНИХ ФЛУКТУАЦІЙ НА ПРОЦЕС НАКОПИЧЕННЯ ВТОМНИХ ПОШКОДЖЕНЬ

The article describes the methods and the preliminary results of the research directedon the investigation of temperature influence on D16AT aluminium alloy fatigue.The initial stage of fatigue has been studied by the analysis of the surface deformationrelief. Test temperature regime corresponds to the aircraft structure temperaturespectrum at the airfield. The level of cyclic stresses is about to those thatarise when the airplane moves on airdrome surface.