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In‐plane biaxial ratcheting effect and low‐cycle fatigue behavior of CP‐Ti based on DIC method by Jia‐Yu Zhao; Zheng Lu; Chang‐Yu Zhou; Le Chang; Xiao‐Hua He is a Engineering article available to read on EtoBox.

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## Abstract In‐plane biaxial fatigue tests of commercial pure titanium (CP‐Ti) were performed to investigate the effects of load ratio and phase shift on fatigue and ratcheting behavior. The results show that with the decrease of load ratio or the increase of phase shift, biaxial ratcheting strain effect is more significant, leading to the deterioration of fatigue resistance. Analysis of the crack morphology and fracture characteristic reveals that the crack propagation path becomes complex and the fracture morphology changes due to the enhanced non‐proportional hardening effect. Finally, current multiaxial life prediction models are evaluated to compare the applicability in the biaxial fatigue life prediction.

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Author

Jia‐Yu Zhao; Zheng Lu; Chang‐Yu Zhou; Le Chang; Xiao‐Hua He

Publisher

Wiley

Published

2022

Language

EN

Field

Engineering (Physical Sciences)