Failure (mechanical) Failure mechanism 9 Cracks 8 Concrete beams and girders 5 Compression testing 4 Compressive strength 4 Experimental investigations 4 Failure analysis 4 Failure modes 4 Fatigue testing 4 Forecasting 4 Mechanical failures 4 Reinforced concrete 4 Concrete testing 3 Concretes 3 Drops 3 Fatigue crack propagation 3 High-cycle fatigue 3 Laminated composites 3 Mechanical properties 3 Nanostructured materials 3 Reinforced concrete beams 3 Risk assessment 3 Simple++ 3 Slope stability 3 Soils 3 Steel fibers 3 Stress analysis 3 Structural design 3 Structure-preserving 3