Rapid evaluation of notch stress intensity factors using the peak stress method: Comparison of commercial finite element codes for a range of mesh patterns

Giuseppe Vincenzo Marannano, Antonio Pantano, Bernardo Zuccarello, Meneghetti, Scattina, De Agostinis, Spaggiari, Colussi, Campagnolo, Corigliano, Rebora, Marulo, Moroni, Goglio, Avalle, Fontanari, Dragoni, Frendo, Castagnetti

Risultato della ricerca: Articlepeer review

20 Citazioni (Scopus)

Abstract

The peak stress method (PSM) is an engineering, finite element (FE)-oriented method to rapidly estimate the notch stress intensity factors by using the singular linear elastic peak stresses calculated from coarse FE analyses. The average element size adopted to generate the mesh pattern can be chosen arbitrarily within a given range.Originally, the PSM has been calibrated under pure mode I and pure mode II loadings by means of Ansys FE software. In the present contribution, a round robin between 10 Italian universities has been carried out to calibrate the PSM with 7 different commercial FE codes. To this aim, several two-dimensional mode I and mode II problems have been analysed independently by the participants. The obtained results have been used to calibrate the PSM for given stress analysis conditions in (i) FE software, (ii) element type and element formulation, (iii) mesh pattern, and (iv) criteria for stress extrapolation and principal stress analysis at FE nodes.
Lingua originaleEnglish
pagine (da-a)1044-1063
Numero di pagine20
RivistaFATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
Volume41
Stato di pubblicazionePublished - 2017

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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