The present study deals with the concrete cracking and damage monitoring during bending test. Notched three point bend specimens, with two different dimensions, were tested under crack mouth opening displacement.… Click to show full abstract
The present study deals with the concrete cracking and damage monitoring during bending test. Notched three point bend specimens, with two different dimensions, were tested under crack mouth opening displacement. The acoustic emission (AE) technique was applied to monitor crack growth and characterize the crack development during bending tests. The cumulative location of the acoustic events and the physical parameters of the signals (hits, events, energy) during the different phases of the bending test were studied. The results show a good correlation between the force-time curves, as well as the deflection, and the acoustic activity.
               
Click one of the above tabs to view related content.