Acoustic emission characteristics Acoustic emission testing 2 Acoustic signals 1 Acoustic-emissions 1 Cracks propagation 1 Eurocode2 1 Failure (mechanical) 1 Fatigue crack propagation 1 Fatigue failures 1 Fatigue life prediction 1 Forecasting 1 Identification of structures 1 Limit stress 1 Maximum load 1 Mesoscopic crack propagation 1 Mesoscopic cracks 1 Nanostructured materials 1 Reinforced concrete 1 Rock fatigue life 1 Rock fatigues 1 Rock pressure 1 Sandstone 1 Signal strengths 1 Stress analysis 1 Structure performance 1 Superconducting materials 1 Three-point loading 1 acoustic emission 1 mesoscopic crack propagation 1 rock fatigue life 1