Plastic notch stress intensity factors for pointed V-notches under antiplane shear loading |
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Authors: | P. Lazzarin M. Zappalorto |
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Affiliation: | (1) Department of Management and Engineering, University of Padova, 36100 Vicenza, Italy |
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Abstract: | The paper deals with a work-hardening, elastic–plastic, stress analysis of pointed V-notches under antiplane shear deformation loading both under small and large scale yielding. Stress and strain field intensities are expressed in terms of plastic Notch Stress Intensity Factors, which are analytically linked to the corresponding linear elastic ones under small scale yielding. The near tip stress and strain fields are then used to give closed-form expressions for the Strain Energy Density over a circular sector surrounding the notch tip, and for the J-integral parameter, both as a function of the relevant plastic NSIFs, these expressions being valid both under small and large scale yielding. |
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Keywords: | V-notch Plasticity Notch stress intensity factor J-integral Strain energy density |
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