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- Title
Multiaxial fatigue of quenched and tempered U2 steel: Testing and fatigue life prediction.
- Authors
Castro, Fábio C.; Mamiya, Edgar N.; Malcher, Lucival; Canut, Felipe A.; Ferreira, Guilherme V.; Neves, Raniere S.
- Abstract
Tension‐compression, tension‐tension, torsional, and 90° out‐of‐phase axial‐torsional fatigue tests were performed on a quenched and tempered U2 steel. All tests were conducted under force/torque control because macroscopic plastic strains were insignificant in the life range of interest (from 104 to 2 × 106 loading cycles). Stress‐based versions of the Fatemi‐Socie critical plane parameter and of the Smith‐Watson‐Topper parameter with a critical plane interpretation were evaluated using the experimental data. The Smith‐Watson‐Topper parameter was not able to correlate the test data. The Fatemi‐Socie method correlated most of the test data within factor‐of‐three boundaries. A modified Crossland invariant‐based parameter made of two interaction rules between the shear stress amplitude and the maximum hydrostatic stress, and of a definition of shear stress amplitude based on the maximum prismatic hull method, yielded fatigue life estimates in reasonable agreement with the experimental observations.
- Subjects
STEEL fatigue; HYDROSTATIC stress; SHEARING force; HIGH cycle fatigue; MATERIAL fatigue; FATIGUE life; TORQUE control
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2019, Vol 42, Issue 11, p2487
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/ffe.13047