In this age of world-wide competition and simultaneous engineering, time- and cost-cutting measurement methods in materials and component development are an important factor in the competitive struggle to achieve technological market leadership. In this context, sound emission analysis (AEA), which is a nondestructive testing method. Acoustic emission gives an online information of crack-initiation, crack propagation on elastic-plastic deformation with artificial acoustic emission of materials. The measurement method makes possible the integrated monitoring of material specimens as well as entire components, allowing an assessment of micro-mechanical events in which energy is transformed into acoustic emission..
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