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Analysis of the dynamic responses for a pre-cracked three-point bend specimen

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Abstract

In this paper, shear deformation and rotary inertia was introduced into the calculation of the dynamic stress intensity factor by means of solving the stiffness of a pre-cracked three-point bend specimen. A simple formula of dynamic stress intensity factor for a pre-cracked three-point bend specimen is derived using the vibration analysis method. Dynamic three-point bending tests were performed on a uniquely modified Hopkinson pressure bar, allowing the dynamic responses of the pre-cracked specimen, such as: the natural frequency, the period of apparent specimen oscillations, the dynamic loads, and the dynamic stress intensity factor to be analyzed experimentally and theoretically.

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Authors and Affiliations

  1. Department of Mechanical and Aerospace Engineering, University of California-San Diego, La Jolla, CA, 92093-0411

    Fengchun Jiang, Aashish Rohatgi, Kenneth S. Vecchio & Justin L. Cheney

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  1. Fengchun Jiang
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  2. Aashish Rohatgi
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  3. Kenneth S. Vecchio
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  4. Justin L. Cheney
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Jiang, F., Rohatgi, A., Vecchio, K.S. et al. Analysis of the dynamic responses for a pre-cracked three-point bend specimen. International Journal of Fracture 127, 147–165 (2004). https://doi.org/10.1023/B:FRAC.0000035058.03627.30

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  • DOI: https://doi.org/10.1023/B:FRAC.0000035058.03627.30

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