Aerospace engineering 1 Cyclic loads 1 Electromagnetic fields 1 Fatigue failures 1 Fatigue loadings 1 Fatigue monitoring 1 Fatigue of materials 1 Fatigue testing 1 Fiber Bragg gratings 1 Fiber optics 1 Fibers 1 Spark plugs 1 Standard fibers 1 Sustainable development 1 Test specimens 1 Universal testing machines 1 Variable amplitude load Variable amplitude loading 1