New Techniques in Nondestructive Testing by Acoustical and Exo-Electron Emission

摘要

The report describes investigations of the frequency distribution of acoustical emission from growing fatigue cracks in 24-ST aluminum sheet. The fatigue cracks were introduced by a high-amplitude, low-cycle bending mode of deformation. Efforts were also devoted to investigating the post fatigue exo-electron emission from nickel wires.