Paper Title:

Applied Research of Fracture for Brass in Extra-Low Cycle Rotating Bending Fatigue

Periodical Key Engineering Materials (Volumes 297 - 300)
Main Theme Advances in Fracture and Strength
Edited by Young-Jin Kim, Dong-Ho Bae and Yun-Jae Kim
Pages 1139-1145
DOI 10.4028/www.scientific.net/KEM.297-300.1139
Citation You Tang Li et al., 2005, Key Engineering Materials, 297-300, 1139
Online since November, 2005
Authors You Tang Li, Ping Ma, Yao Bing Wei
Keywords Brass, Crack Technique, Extra-Low Cycle, Fatigue, Rotating Bending
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Abstract

The application of regular blanking for brass under extra-low cycle rotating bending fatigue was studied. The experiments of rotating bending fatigue have been made in special equipment designed by us. Several problems, the relations of the cycle times of fracture, the strain amplitude near the tip of notch and fracture toughness of fatigue to the presetting deflection, the effects of depth and tip radius of notch to the cycle times of fracture, were discussed through the experiments. The formulae of stress amplitude at the tip of notch and fracture toughness of brass to presetting deflection were obtained. The suitable parameters of fracture in rotating bending fatigue for blanking of brass under extra-low cycle times have been proposed.