Modeling of acoustic-emission processes in a solid

作者:Belikov V T*
来源:Russian Journal of Nondestructive Testing, 2008, 44(6): 429-435.
DOI:10.1134/S1061830908060090

摘要

On the basis of a model for describing the processes of acoustic emission (AE) and the relationships following from it and relating the AE parameters to the structural and physical characteristics of a solid subjected to damage, AE processes are mathematically simulated. It is shown that the morphology of the AE amplitude-frequency spectrum is determined by both the crack-size distribution function and the dependences of the displacement amplitude of interphase surfaces and the difference of elastic stresses on the surfaces of radiating cracks on their effective radius.

  • 出版日期2008-6