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Kinematics of damage zone accompanying curved crack

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Abstract

This paper presents a methodology of a quantitative characterization of the kinematics of evolution of a damage zone surrounding the tip of a slowly propagating crack. On the basis of the Crack Layer Theory, the evolution of the damage zone is modelled as a combination of a few elementary motions: translation, rotation, isotropic expansion and distortion. A procedure for evaluating the rates of the elementary motions on the basis of direct measurements is developed. The procedure is illustrated for curved crack layer growth in the vicinity of a hole in commercial polystyrene. The important role of the damage zone in determining the main crack trajectory and speed is clearly demonstrated.

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Authors and Affiliations

  1. Department of Civil Engineering, Mechanics, and Metallurgy, University of Illinois at Chicago, 60680, Chicago, Illinois, USA

    W. -L. Huang, B. Kunin & A. Chudnovsky

Authors
  1. W. -L. Huang
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  2. B. Kunin
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  3. A. Chudnovsky
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Huang, W.L., Kunin, B. & Chudnovsky, A. Kinematics of damage zone accompanying curved crack. Int J Fract 50, 143–152 (1991). https://doi.org/10.1007/BF00035209

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  • DOI: https://doi.org/10.1007/BF00035209

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