Creep-integrated fatigue equation for metals
Source abstract
Abstract
Abstract Background The existing creep-fatigue models are valid over limited ranges of temperatures and frequencies. Need There is a need to develop a creep-fatigue equation that covers the full range of phenomena from pure fatigue to pure creep rupture, and all the intermediate failures. Method By integrating the Manson-Haferd parameter into the Coffin-Manson equation, the creep-integrated fatigue equation is developed and further is validated on three metal alloys: 63Sn37Pb solder, Sn3.5Ag solder and stainless steel 316. Results This new formulation collapses the dispersed strain-life data of the alloys obtained at diverse temperatures and cycle times into a cohesive strain-life formulaic representation. Supported by this result, the method of establishing the material parameters for the creep-integrated fatigue equation is demonstrated. Originality The resulting equation is capable of modelling the full range of creep-fatigue interaction from pure fatigue to pure creep rupture, and the combinations thereof. A method is provided to determine the coefficients.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High Temperature Alloys and Creep · Fatigue and fracture mechanics · Probabilistic and Robust Engineering Design
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (44)
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