Characterization of Intrinsic ΔKth to Support Crack Growth Estimates under Spectrum Loading in the HCF/VHCF Domain

What is it about?

Prevailing testing practice to characterize near-threshold fatigue crack growth rates does not address conditions that machinery and structures will experience in service. We describe a new test procedure to establish threshold fatigue characteristics of metals that reflect conditions under which fatigue cracks are likely to grow conditions of service loading

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