Fracture toughness evaluation of ductile polymeric films

@article{Hashemi1997FractureTE,
  title={Fracture toughness evaluation of ductile polymeric films},
  author={S. Hashemi},
  journal={Journal of Materials Science},
  year={1997},
  volume={32},
  pages={1563-1573}
}
The energy for complete fracture in double edge-notched tension test specimens has been measured for a wide range of polymer films. Results indicated that the variation of the total specific work of fracture, wT, with ligament length, L, can be described by two straight lines, both of the form wT = we + β wpL, thus giving upper and lower intercept values at zero ligament length (i.e. we) for each film. The first term, we, is the energy absorbed per unit area of fracture, whereas the second term… CONTINUE READING

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