Full field measurements of anisotropic stress intensity factor ranges in fatigue

Garrett J. Pataky, Michael D. Sangid, Huseyin Sehitoglu, Reginald F. Hamilton, Hans J. Maier, Petros Sofronis

    研究成果: ジャーナルへの寄稿学術誌査読

    50 被引用数 (Scopus)

    抄録

    The effects of anisotropy during mixed mode fatigue crack growth were studied in single crystal 316L stainless steel. An anisotropic least-squares regression algorithm using displacements from digital image correlation was developed to find the effective stress intensity factors, K I and K II, and the T-stress. Crack tip plastic zones were determined using an anisotropic yield criterion. Strains in the plastic zone obtained from digital image correlation showed a dependence on the crystallography and load ratio. Crack tip slip irreversibility was measured and showed an increasing trend with increasing crack length; this information is critical for describing crack growth behavior.

    本文言語英語
    ページ(範囲)13-28
    ページ数16
    ジャーナルEngineering Fracture Mechanics
    94
    DOI
    出版ステータス出版済み - 11月 2012

    !!!All Science Journal Classification (ASJC) codes

    • 材料科学一般
    • 材料力学
    • 機械工学

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