## Abstract

Due to the random nature of material properties, crack growth is a random process. A probabilistic model for randomness of the progressive crack growth in a quasibrittle material such as concrete is presented. The model consists of a Markov chain adapted to R-curve fracture behavior. The method is useful particularly for concrete structures with existing major cracks. The R-curve serves as the mean curve for the fracture process. The R-curve under monotonic loading is obtained from the given test data on the effect of structural sizes. The standard deviation of the mean curve is predicted from the standard deviation of the load carrying capacity of specimens. The parameter estimation method is formulated and applications to existing structures are illustrated.

Original language | English (US) |
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Title of host publication | Probabilistic Mechanics and Structural and Geotechnical Reliability, Proceedings of the Specialty Conference |

Publisher | ASCE |

Pages | 358-361 |

Number of pages | 4 |

State | Published - Jan 1 1996 |

Event | Proceedings of the 1996 7th Specialty Conference on Probabilistic Mechanics and Structural Reliability - Worcester, MA, USA Duration: Aug 7 1996 → Aug 9 1996 |

### Other

Other | Proceedings of the 1996 7th Specialty Conference on Probabilistic Mechanics and Structural Reliability |
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City | Worcester, MA, USA |

Period | 8/7/96 → 8/9/96 |

## ASJC Scopus subject areas

- General Engineering