Materials Congresses 132 Testing 85 Fatigue 58 Fracture mechanics 44 Airplanes 27 Electronics 25 Metals 25 Research 24 Effect of radiation on 21 Creep 20 Standards 20 Manufacturing processes 18 Composite materials 16 Thermal properties 16 Nuclear reactors 15 Periodicals 15 Pressure vessels 15 Strains and stresses 13 Electric engineering 12 Space vehicles 12 Materials at high temperatures 11 Design and construction 10 Deterioration 10 Metallurgy 10 Solids 10 Bibliography 8 Corrosion and anti-corrosives 8 Engineering design 8 Handbooks, manuals, etc 8