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Mixed mode crack propagation in advanced materials

N. PERIDE1, E. M. CRACIUN1,* , A. CARABINEANU2, L. MARSAVINA3

Affiliation

  1. Ovidius University, Mamaia 124, Constanta, 900527, Romania
  2. University of Bucharest, Academiei 14, Bucharest, 010014, Romania
  3. Politehnica University of Timisoara, Piata Victoriei 2, Timisoara, 300006, Romania

Abstract

We consider a pre-stressed material containing a crack of a length 2a situated in x1x2 – plane in mixed mode of classical fracture. We suppose that the material is unbounded and the crack faces are acted by constant normal and tangential incremental stresses. The initial applied pre-stress is in direction of the crack. Critical values of the incremental stresses and the direction of crack propagation are determined. A numerical application for a particular case of boron-epoxy composite is considered..

Keywords

Crack, Sih’s fracture criterion, Resonance, Boron – epoxy composite.

Submitted at: Sept. 1, 2008
Accepted at: Nov. 11, 2008

Citation

N. PERIDE, E. M. CRACIUN, A. CARABINEANU, L. MARSAVINA, Mixed mode crack propagation in advanced materials, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 11, pp. 2870-2875 (2008)