### Abstract

The stress field near the tip of a plane strain crack, growing quasi-statically along an elastic/elastic power law creeping bi-material interface, is studied. Both the elastic and creeping materials are incompressible. It is found that when n≥3, where n is the power law creeping exponent, the leading order term of the stress field has a separable form, and the amplitude of the field is determined by current crack tip velocity and material parameters. Furthermore, the solution exhibits only two modes, one of which is close to pure mode I and the other one is close to pure mode II. They approach pure modes I and II as the value of n approaches 3. Thus, arbitrary mode mixity cannot be prescribed, and the near tip field is independent of the far field loading conditions. When n<3, the near tip field is similar to that of a crack along the interface of two linear elastic materials.

Original language | English (US) |
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Title of host publication | Composite Materials |

Editors | Walter F. Jones |

Publisher | Publ by ASME |

Pages | 65-76 |

Number of pages | 12 |

Volume | 37 |

ISBN (Print) | 0791812502 |

State | Published - 1993 |

Externally published | Yes |

Event | Proceedings of the 1993 ASME Winter Annual Meeting - New Orleans, LA, USA Duration: Nov 28 1993 → Dec 3 1993 |

### Other

Other | Proceedings of the 1993 ASME Winter Annual Meeting |
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City | New Orleans, LA, USA |

Period | 11/28/93 → 12/3/93 |

### Fingerprint

### ASJC Scopus subject areas

- Space and Planetary Science
- Mechanical Engineering

### Cite this

*Composite Materials*(Vol. 37, pp. 65-76). Publ by ASME.

**Growing crack along elastic/creeping bi-material interface.** / Saif, M Taher A; Hui, Chung Yuen.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Composite Materials.*vol. 37, Publ by ASME, pp. 65-76, Proceedings of the 1993 ASME Winter Annual Meeting, New Orleans, LA, USA, 11/28/93.

}

TY - GEN

T1 - Growing crack along elastic/creeping bi-material interface

AU - Saif, M Taher A

AU - Hui, Chung Yuen

PY - 1993

Y1 - 1993

N2 - The stress field near the tip of a plane strain crack, growing quasi-statically along an elastic/elastic power law creeping bi-material interface, is studied. Both the elastic and creeping materials are incompressible. It is found that when n≥3, where n is the power law creeping exponent, the leading order term of the stress field has a separable form, and the amplitude of the field is determined by current crack tip velocity and material parameters. Furthermore, the solution exhibits only two modes, one of which is close to pure mode I and the other one is close to pure mode II. They approach pure modes I and II as the value of n approaches 3. Thus, arbitrary mode mixity cannot be prescribed, and the near tip field is independent of the far field loading conditions. When n<3, the near tip field is similar to that of a crack along the interface of two linear elastic materials.

AB - The stress field near the tip of a plane strain crack, growing quasi-statically along an elastic/elastic power law creeping bi-material interface, is studied. Both the elastic and creeping materials are incompressible. It is found that when n≥3, where n is the power law creeping exponent, the leading order term of the stress field has a separable form, and the amplitude of the field is determined by current crack tip velocity and material parameters. Furthermore, the solution exhibits only two modes, one of which is close to pure mode I and the other one is close to pure mode II. They approach pure modes I and II as the value of n approaches 3. Thus, arbitrary mode mixity cannot be prescribed, and the near tip field is independent of the far field loading conditions. When n<3, the near tip field is similar to that of a crack along the interface of two linear elastic materials.

UR - http://www.scopus.com/inward/record.url?scp=0027805876&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027805876&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:0027805876

SN - 0791812502

VL - 37

SP - 65

EP - 76

BT - Composite Materials

A2 - Jones, Walter F.

PB - Publ by ASME

ER -