Study on Flaw-to-Surface Proximity Rule for Transforming Subsurface Flaws to Surface Flaws Based on Fatigue Crack Growth Experiments

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説明

<jats:p>If a subsurface flaw is located very near a component surface, the subsurface flaw is categorized as a surface flaw. The boundary of the subsurface and surface flaws is required for flaw evaluation. The subsurface flaw is transformed to a surface flaw in accordance with a flaw-to-surface proximity rule. The recharacterization process from subsurface to surface flaw is adopted in all fitness-for-service (FFS) codes. However, the specific criteria of the recharacterizations are different among the FFS codes. Cyclic tensile experiment was conducted on a carbon steel flat plate with a subsurface flaw at ambient temperature. The objective of the paper is to compare the experiment and calculation of fatigue crack growth behavior for a subsurface flaw and the transformed surface flaw, and to check the validity of the flaw-to-surface proximity rule defined by ASME Code Section XI, JSME S NA1 Code and other codes.</jats:p>

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詳細情報 詳細情報について

  • CRID
    1873116917677257344
  • DOI
    10.1115/1.4028423
  • ISSN
    15288978
    00949930
  • データソース種別
    • OpenAIRE

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