Estimation of Energy Released from Crack in Concrete using Acoustic Emission and Comparison with the Numerical Results

Study relating Acoustic Emission (AE) energy to fracture energy has been conducted in the past and a correlation has been reported between the two. The scope of these studies has remained limited to laboratory size specimens with known crack location and the energy release being investigated on a global scale. The objective of this research is...

Damage Mechanisms in Composite Materials: Real-time Clustering and Classification of Acoustic Emission Signals

A lot of studies have been done on Acoustic Emission (AE) covering a wide range of materials and applications. Within a structure that is under loading, AE has proven to be useful in determining the type, location and accumulation of damage within a material. The general goal is to use AE for inservice monitoring of structurally loaded parts....

Experimental analysis of passive acoustic emission, in particular the Kaiser Effect, under dynamic stress conditions: Exploring the implications for in-situ failure monitoring in underground mines

Irreversible damage induced by stress in brittle rock is accompanied by the formation of micro-cracks. The strain energy released during the fracturing process is released in the form of acoustic emission. This thesis applied the non-intrusive method of acoustic emission monitoring to assess the deformation process of brittle rock during...