P92 steel creep-fatigue interaction responses under hybrid stress-strain controlled loading and a life prediction model
Source abstract
Abstract
Abstract In contrast to conventional strain-controlled creep-fatigue interaction (CCFI) loadings, a novel hybrid stress- and strain-controlled creep-fatigue interaction (HCFI) loadings were developed on P92 steel. Dwell stresses ranging from 140 MPa to 170 MPa, and dwell periods of 300 s, 600 s and 1800 s were employed at 625 °C. The test responses demonstrate that cyclic softening and hardening effects lead to complicated cyclic responses. In addition, the failure life under HCFI loading is observed to be reduced with the dwell stress and dwell period. Finally, a viscosity-based model is proposed to predict the lifetime of both HCFI and CCFI tests.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High Temperature Alloys and Creep · Fatigue and fracture mechanics · Fire effects on concrete materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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