Fatigue Materials 58 Metals 56 Congresses 33 Fracture mechanics 33 Testing 23 Airframes 12 Welded joints 12 Cracking 11 Steel 10 Fracture 9 Strains and stresses 9 Creep 8 Pressure vessels 8 Design and construction 6 Composite materials 5 Steel, Structural 5 Airplanes 4 Industrial efficiency 4 Machine design 4 Materials at high temperatures 4 Mathematical models 4 Research 4 Stress corrosion 4 Corrosion and anti-corrosives 3 Fibrous composites 3 Handbooks, manuals, etc 3 Measurement 3 Metallurgy 3 Physiological aspects 3