Etude numérique et semi-analytique de la nocivité de défauts dans les coques sphériques
DOI:
https://doi.org/10.13052/16%20–%20n°%2012007Keywords:
stress intensity factor, J integral, A16/R6, spherical shells under pressureAbstract
The present study deals with the little well-known problem of the harmfulness of cracks involved in spherical pressure equipments. The stress intensity factor in the linear elastic domain and the J integral in the elastoplastic range are performed using the finite element method and compared to the results provided by the application of the semi-analytical A16 or R6 simplified criteria. Use is made of a polynomial decomposition of the stress field in the vicinity of the crack in order to cover all industrial loadings.
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