The relationship between additional non-proportional hardening coefficient and fatigue life
Source abstract
Abstract
Abstract According to many researchers, there is a correlation between additional non-proportional hardening and fatigue life drop under the non-proportional loadings. This opinion results in many multiaxial fatigue life prediction models relating the fatigue life with non-proportional hardening parameter. At the same time there is a significant number of researchers, who believe that such a relationship is not a general principle and fatigue damage parameters cannot be formulated based on it. Since the scientific discussion on this dispute in literature is rather fragmentary, this paper tries to answer the question about the character of relationship between non-proportional hardening and fatigue life. For this purpose, the views of both sides and associated multiaxial fatigue models are presented at first. Secondly, own fatigue tests were carried out under proportional and non-proportional loadings on 5 materials. The analysis of own experimental results was extended to include literature data regarding another 25 materials. In the summary, it was found that the relationship between additional non-proportional hardening coefficient and fatigue life should not be the base for the multiaxial fatigue models.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · High Temperature Alloys and Creep · Mechanical Failure Analysis and Simulation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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