Combined Application of Acoustic Emission and Vibration Diagnostics in Statistical Tensile Tests of Samples with a Combined Stress Concentrator
摘要
Abstract
The methodology of combined application of acoustic emission diagnostics and vibration diagnostics for monitoring the state of damage of samples made of 17GS1 pipe steel with a combined stress during the development of a dominant crack is considered. In the experiments, the stress concentrator is a transverse weld subjected to local crumbling and a guide scratch to a depth of up to 3 mm across the entire sample width. Such a concentrator simulated the effect of buried reinforcement on the weld when laying a pipeline through a water obstacle.