For the fatigue design of aircraft landing gear, the safe-life approach is applied. The structural defects such as crack or detrimental deformation should not occur under the fatigue load spectrum depicting the whole lifetime usage of the aircraft. In...
For the fatigue design of aircraft landing gear, the safe-life approach is applied. The structural defects such as crack or detrimental deformation should not occur under the fatigue load spectrum depicting the whole lifetime usage of the aircraft. In the design phase, fatigue life of landing gear is estimated by analysis adopting the stress based approach since the fatigue of aircraft landing gear is generally high cycle fatigue. This utilizes S-N curves which are factored to produce design curves accounting for scatter and surface finish of the material. In the test and evaluation phase, fatigue test should be conducted for the full-scale landing gear to substantiate the fatigue requirement in the end. In this paper, the procedure for fatigue test and evaluation of aircraft landing gear is presented with real application cases.