A unified equation for creep-fatigue
Source abstract
Abstract
Abstract “Pure fatigue” is a special case of creep-fatigue; and the Coffin–Manson equation, Δ e p = C o N - β o , is a special case of the general creep-fatigue equation, which is proposed to take the form: Δ e p = C o s ( σ ) c ( T , f ) N - β o b ( T , f ) . The functions, s(σ), c(T, f) and b(T, f), embody the stress–time–temperature characteristic of creep. At the reference condition when creep is dormant, s(σ) = c(T, f) = b(T, f) = 1, the Coffin–Manson equation is recovered. At the extreme condition when c(T, f) = 0, creep-rupture occurs without fatigue. In between these two extreme conditions whence 0 ⩽ c(T, f) ⩽ 1, creep-fatigue prevails.
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 (37)
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