TY - JOUR
T1 - Rapid evaluation of notch stress intensity factors using the peak stress method: Comparison of commercial finite element codes for a range of mesh patterns
AU - Zuccarello, Bernardo
AU - Marannano, Giuseppe Vincenzo
AU - Pantano, Antonio
AU - Meneghetti, null
AU - Scattina, null
AU - De Agostinis, null
AU - Spaggiari, null
AU - Colussi, null
AU - Campagnolo, null
AU - Corigliano, null
AU - Rebora, null
AU - Marulo, null
AU - Moroni, Fabrizio
AU - Goglio, null
AU - Avalle, null
AU - Fontanari, null
AU - Dragoni, null
AU - Frendo, null
AU - Castagnetti, null
PY - 2018
Y1 - 2018
N2 - 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.
AB - 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.
UR - http://hdl.handle.net/10447/251131
M3 - Article
SN - 1460-2695
VL - 41
SP - 1044
EP - 1063
JO - FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
JF - FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
ER -