International Journal of Fracture

, Volume 140, Issue 1, pp 3–14

Nanoscale damage during fracture in silica glass

Authors

    • Fracture Group, Service de Physique et Chimie des Surfaces et InterfacesDSM/DRECAM/SPCSI, CEA Saclay
  • S. Prades
    • Fracture Group, Service de Physique et Chimie des Surfaces et InterfacesDSM/DRECAM/SPCSI, CEA Saclay
    • Department of MaterialsSwiss Federal Institute of Technology
  • C. L. Rountree
    • Fracture Group, Service de Physique et Chimie des Surfaces et InterfacesDSM/DRECAM/SPCSI, CEA Saclay
    • Collaboratory for Advanced Computing and Simulations, Departments of Material Science and Engineering, Physics and Astronomy, Computer Science and Biomedical EngineeringUniversity of Southern California
  • L. Ponson
    • Fracture Group, Service de Physique et Chimie des Surfaces et InterfacesDSM/DRECAM/SPCSI, CEA Saclay
  • D. Dalmas
    • Fracture Group, Service de Physique et Chimie des Surfaces et InterfacesDSM/DRECAM/SPCSI, CEA Saclay
    • Glass Surface and InterfaceUnité Mixte CNRS/Saint-Gobain
  • E. Bouchaud
    • Fracture Group, Service de Physique et Chimie des Surfaces et InterfacesDSM/DRECAM/SPCSI, CEA Saclay
  • K. Ravi-Chandar
    • Center for Mechanics of Solids, Structures and Materials, Department of Aerospace Engineering and Engineering MechanicsUniversity of Texas
  • C. Guillot
    • Fracture Group, Service de Physique et Chimie des Surfaces et InterfacesDSM/DRECAM/SPCSI, CEA Saclay
Article

DOI: 10.1007/s10704-006-6579-2

Cite this article as:
Bonamy, D., Prades, S., Rountree, C.L. et al. Int J Fract (2006) 140: 3. doi:10.1007/s10704-006-6579-2

Abstract

We report here atomic force microscopy experiments designed to uncover the nature of failure mechanisms occuring within the process zone at the tip of a crack propagating into a silica glass specimen under stress corrosion. The crack propagates through the growth and coalescence of nanoscale damage spots. This cavitation process is shown to be the key mechanism responsible for damage spreading within the process zone. The possible origin of the nucleation of cavities, as well as the implications on the selection of both the cavity size at coalescence and the process zone extension are finally discussed.

Keywords

AFMbrittle fracturecorrosion fatiguedamage

Keywords

D24L60047

Copyright information

© Springer 2006