Effect Of Compressive Mean Stress On Fatigue Properties Of Structural Steel
Author(s)
S. Nishida, N. Hatton & S. Horiuchi
Abstract
Effect of compressive mean stress on fatigue
properties of structural steel
S. Nishida', N. Hatton & S. Horiuchi'
Faculty of Science & Engineering, Saga University, Honjo-machi 1,
Graduate School, Faculty of Science & Engineering, Saga University,
Abstract
Pulsating fatigue tests have been performed using the specimens with or
without surface deformation to investigate the effect of compressive mean stress
on fatigue properties of structural steel. In addition, the specimen's surface has
been observed by the successive taken replica method to investigate the change
of surface state and fatigue crack initiation mechanism. The main results
obtained in this tests are as follows; (1) The fatigue limits of the specimens with
and without surface deformation are 147 and 371 MPa, respectively. The
above much difference of the fatigue limit would be caused by the compressive
residual stress and work-hardening due to roller working. (2) According to
increase of the compr
Keywords
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