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Influence of late-breaking ligaments on crack propagation in compact specimens—A photoelastic study

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Abstract

Dynamic photoelasticity and high-speed photography were utilized to study the influence of tough ligaments on crack propagation in compact specimens. The data obtained during the fracture experiments were analyzed to obtain crack velocity, instantaneous stress-intensity factor and the energy losses away from the crack tip. The results showed that the ligaments can behave as crack arrestors or decelerators. The crack if not arrested at the ligament slowly tunnels in between the ligaments without immediately rupturing them. The ligaments also tend to increase damping losses in the specimens.

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References

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Authors and Affiliations

  1. Department of Mechanical Engineering and Applied Mechanics, University of Rhode Isoland, 02881, Kingston, RI

    A. Shukla (Assistant Professor)

  2. Federal Systems Division, IBM, 9500 Goodwin Drive, 22110, Manassas, VA

    J. W. Dally (Manager)

Authors
  1. A. Shukla
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  2. J. W. Dally
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Shukla, A., Dally, J.W. Influence of late-breaking ligaments on crack propagation in compact specimens—A photoelastic study. Experimental Mechanics 23, 298–303 (1983). https://doi.org/10.1007/BF02319256

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  • DOI: https://doi.org/10.1007/BF02319256

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