Discontinuous crack fronts of three-dimensional fractures
Graduate School of Human and Environmental Studies, Kyoto University, Kyoto, 606-8501 Japan
2 Faculty of Integrated Human Studies, Kyoto University, Kyoto, 606-8501 Japan
3 Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, 606-8502 Japan
Accepted: 24 July 1998
The relation between fracture surface morphology and the three-dimensional structure of crack fronts is investigated through direct observation of brittle cracks in gels. A key notion in this investigation is the discontinuity of the crack front, whose advancement creates the fracture surface. We discuss the significance of our findings in the studies of general three-dimensional brittle fractures.
PACS: 46.30.Nz – Fracture mechanics, fatigue, and cracks / 61.41.+e – Polymers, elastomers, and plastics / 62.20.Mk – Fatigue, brittleness, fracture, and crack
© EDP Sciences, 1998