A numerical study of non-linear crack tip parameters

@inproceedings{Antunes2015ANS,
  title={A numerical study of non-linear crack tip parameters},
  author={F. V. Antunes and Ricardo Branco and Luis M. Correia and A. L. Ramalho},
  year={2015}
}
Crack closure concept has been widely used to explain different issues of fatigue crack propagation. However, different authors have questioned the relevance of crack closure and have proposed alternative concepts. The main objective here is to check the effectiveness of crack closure concept by linking the contact of crack flanks with non-linear crack tip parameters. Accordingly, 3D-FE numerical models with and without contact were developed for a wide range of loading scenarios and the crack… CONTINUE READING

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