CRITICAL PLANES CRITERIA APPLIED TO GEAR TEETH: WHICH ONE IS THE MOST APPROPRIATE TO CHARACTERIZE CRACK PROPAGATION?

• Published in: WIT Transactions on Engineering Sciences Vol. 133; p. 15
• Main Authors: CONCLI, FRANCO, Maccioni, Lorenzo
• Format: Journal Article
• Language: English
• Published: Southampton W I T Press 01.01.2021
• Subjects: Bend tests; Bending fatigue; Bending stresses; Breakage; Crack propagation; Criteria; Critical point; Failure modes; Fatigue failure; Fatigue tests; Finite element method; Gear teeth; Mechanical components; Nucleation; Propagation; Tooth root

Tooth root bending fatigue is the most dangerous failure mode in gears. Indeed, it starts from the nucleation of a crack within the tooth root fillet region and the subsequent propagation up to the complete breakage of the tooth. To investigate this phenomenon, Single Tooth Bending Fatigue (STBF) te...