The effect of material stochasticity on crack-damage interaction and crack propagation

✍ Scribed by Vadim V. Silberschmidt; Jean-Louis Chaboche

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 847 KB
• Volume: 48
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(94)90128-7

✦ Synopsis

The problem of propagating crack characterization is examined for a case of a stochastic brittle medium. Crack-damage interaction and its influence on fracture kinetics are accounted for by means of continuum damage mechanics and stochastic values of stress intensity factor. The two-dimensional problem of a crack propagation in a rectangular cross-section of a notched specimen is numerically simulated. It is shown that the fractal dimension of a crack front is a fracture process invariant for stochastic materials. The effect of a material's stochasticity on the characteristic features of crack propagation and on the crack front morphology is studied.