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ulti-Axial Fatigue Initiation Testing and Specimen Characterization of 304 Stainless Steel

Product Number: ED22-18372-SG

Author: Eleanor M Grieveson, Peter Gill, Paul Onwuarolu, Ben Coult, Alistair Garner

Publication Date: 2022

$20.00

Current fatigue assessments for the fatigue life of a plant component are usually based on methodologies that use uniaxial fatigue test data (i.e. ASME Section III, and are intended to be conservative for design and fitness-for-purpose assessments when applied to plant components and loading. This data is generated through cyclic loading of specimens at a constant amplitude, and failure is usually defined as when there is a load drop of 25% from steady state stress under strain-controlled conditions (or specimen separation for stress control). The corresponding number of cycles is then used as the definition of fatigue life for a particular strain amplitude. It is known that there are differences between fatigue behaviour in an idealised laboratory setting and in-service components which can contribute to excessive conservatism in plant assessments.

Products tagged with 'fib'

ulti-Axial Fatigue Initiation Testing and Specimen Characterization of 304 Stainless Steel

Association for Materials Protection and Performance