## Abstract

Direct computation of the mixed-mode stress field at a sharp notch tip appears to be difficult in that the mode I and mode II asymptotic stresses are in general governed by different orders of singularity. In this paper, we first present a path-independent integral termed M_{1ε}. The relation between M_{1ε} and the generalized stress intensity factors is then derived and expressed as function of the notch angle. Once the M _{1ε}-integrals are accurately computed, the generalized SIF's and, consequently, the asymptotic mixed-mode stress field can thus be properly determined. No extra complementary solutions are required in the formulation. Further, no particular singular elements are required when the integration is performed by using finite elements.

Original language | English |
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Pages (from-to) | 419-427 |

Number of pages | 9 |

Journal | Computational Mechanics |

Volume | 31 |

Issue number | 5 |

DOIs | |

State | Published - Jul 2003 |

## Keywords

- Generalized SIF's
- M-integral
- Mixed-mode stresses
- Notch tip
- Path-independence
- Singular behavior

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