## Abstract

In this study, the elastic-plastic J of a tension-loaded plate with a semi-elliptical surface crack was calculated using finite element (FE) analysis. The results were then compared with those obtained using the existing J-integral estimation equation. To analyze the effect of the plate width-to-thickness ratio on J, a wide range of plate width-to-thickness ratio were considered. It was found that the existing estimation equation can predict J-integral within a small margin of error when the plate width-to-thickness is small. However, as the plate width-to-thickness ratio increases, the margin of error increases up to 3.5 times the estimated J.

Original language | English |
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Pages (from-to) | 717-723 |

Number of pages | 7 |

Journal | Transactions of the Korean Society of Mechanical Engineers, A |

Volume | 44 |

Issue number | 10 |

DOIs | |

Publication status | Published - 2020 |

### Bibliographical note

Publisher Copyright:© 2020 The Korean Society of Mechanical Engineers.

## Keywords

- Finite element analysis
- J-estimation equation
- J-integral
- Reference stress method
- Semi-elliptical surface crack

## ASJC Scopus subject areas

- Mechanical Engineering