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Size-scale transition from ductile to brittle failure: structural response vs. crack growth resistance curve

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Abstract

The concept of brittleness number is revised emphasizing the distinction between a stress-intensification treatment and an energy treatment. In the case of power-law hardening materials the relation between plastic stress-intensity factor and J-integral is translated into a relation between stress brittleness number and energy brittleness number. The structural response generally depends on both such numbers and, therefore, is not physically similar when varying the size-scale of the body. A connection is then established between structural response and crack growth resistance curve, the relevant parameters of a scale-invariant J-resistance curve being related to the energy brittleness number.

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Authors and Affiliations

  1. Department of Structural Engineering, Politecnico di Torino, 10129, Torino, Italy

    Alberto Carpinteri

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  1. Alberto Carpinteri
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Carpinteri, A. Size-scale transition from ductile to brittle failure: structural response vs. crack growth resistance curve. Int J Fract 51, 175–186 (1991). https://doi.org/10.1007/BF00033977

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  • DOI: https://doi.org/10.1007/BF00033977

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