Eventos Anais de eventos
MECSOL 2019
7th International Symposium on Solid Mechanics
Cyclic Plasticity and Fatigue of 304L Stainless Steel under Proportional and Nonproportional Loading
Submission Author:
Cainã Bemfica de Barros , DF , Brazil
Co-Authors:
Cainã Bemfica de Barros, Edgar Mamiya, Fábio Castro
Presenter: Fábio Castro
doi://10.26678/ABCM.MECSOL2019.MSL19-0049
Abstract
The cyclic plasticity and the fatigue behaviour of the 304L stainless steel were investigated at room temperature for fully-reversed strain-controlled axial, torsional, proportional axial-torsional and 90º out-of-phase non-proportional loading. Significant secondary hardening, associated with a martensitic phase transformation, was observed for axial and torsional loading, whilst mild or no secondary hardening occurred for proportional and non-proportional experiments. Measurable plastic strains were observed for all experiments, including those that did not fail after 2000000 cycles. The equivalent strain amplitude did not correlate the fatigue life for the investigated load
Keywords
stainless steels, plasticity, cyclic hardening, multiaxial fatigue, life prediction
