Français
3. Acoustic emission fatigue testing: conventional methods
The idea of non-destructive testing of damage and fatigue cracking based on the detection of induced acoustic emissions is a long-standing one. , but based almost exclusively on analysis of the evolution of global variables, such as the average level of "noise" or acoustic energy recorded, or the number of blows dn c /dN or bursts (dn s )/(dN) per cycle, detected above a signal amplitude threshold. N is the number of loading cycles. This classic type of analysis, relatively easy to implement in principle, faces various problems:
a classic...
The Ultimate Scientific and Technical Reference
This article is included in
Technological innovations
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Acoustic emission fatigue testing: conventional methods
Specific detection of fatigue crack propagation
Bibliography
Standards and norms
- (Roget, J.) Essais non destructifs. L'émission acoustique, mise en œuvre et applications. AFNOR, CETIM Centre technique des industries mécaniques, 196 (1988). - Norme AFNOR NF A09-350 -
The Ultimate Scientific and Technical Reference
