Rapid evaluation of notch stress intensity factors using the peak stress method with 3D tetrahedral finite element models: Comparison of commercial codes

Autor: Giovanni Meneghetti, Alberto Campagnolo, Alberto Visentin, Massimiliano Avalle, Matteo Benedetti, Andrea Bighelli, Davide Castagnetti, Andrea Chiocca, Luca Collini, Massimiliano De Agostinis, Alessandro De Luca, Eugenio Dragoni, Stefano Fini, Vigilio Fontanari, Francesco Frendo, Alessandro Greco, Giuseppe Marannano, Fabrizio Moroni, Antonio Pantano, Alessandro Pirondi, Alessandro Rebora, Alessandro Scattina, Raffaele Sepe, Andrea Spaggiari, Bernardo Zuccarello
Přispěvatelé: Meneghetti G., Campagnolo A., Visentin A., Avalle M., Benedetti M., Bighelli A., Castagnetti D., Chiocca A., Collini L., De Agostinis M., De Luca A., Dragoni E., Fini S., Fontanari V., Frendo F., Greco A., Marannano G., Moroni F., Pantano A., Pirondi A., Rebora A., Scattina A., Sepe R., Spaggiari A., Zuccarello B., Meneghetti, G., Campagnolo, A., Visentin, A., Avalle, M., Benedetti, M., Bighelli, A., Castagnetti, D., Chiocca, A., Collini, L., De Agostinis, M., De Luca, A., Dragoni, E., Fini, S., Fontanari, V., Frendo, F., Greco, A., Marannano, G., Moroni, F., Pantano, A., Pirondi, A., Rebora, A., Scattina, A., Sepe, R., Spaggiari, A., Zuccarello, B.
Rok vydání: 2022
Předmět:
"notch stress intensity factor (NSIF)"
Mechanical Engineering
Notch Stress Intensity Factor (NSIF)
Peak Stress Method (PSM)
FE Analysis
Coarse Mesh
Tetrahedral element
peak stress method (PSM)
"peak stress method (PSM)"
"coarse mesh"
" FE analysis"
"notch stress intensity factor (NSIF)"
"peak stress method (PSM)"
"tetrahedral element"
coarse mesh
FE analysis
notch stress intensity factor (NSIF)
peak stress method (PSM)
tetrahedral element
coarse mesh
FE analysis
notch stress intensity factor (NSIF)
tetrahedral element
"coarse mesh"
" FE analysis"
coarse mesh
notch stress intensity factor (NSIF)
peak stress method (PSM)
tetrahedral element
FE analysis
Settore ING-IND/14 - Progettazione Meccanica E Costruzione Di Macchine
Mechanics of Materials
General Materials Science
FE analysi
"tetrahedral element"
Zdroj: Fatigue & Fracture of Engineering Materials & Structures. 45:1005-1034
ISSN: 1460-2695
8756-758X
Popis: The peak stress method (PSM) allows a rapid application of the notch stress intensity factor (NSIF) approach to the fatigue life assessment of welded structures, by employing the linear elastic peak stresses evaluated by FE analyses with coarse meshes. Because of the widespread adoption of 3D modeling of large and complex structures in the industry, the PSM has recently been boosted by including four-node and ten-node tetrahedral elements of Ansys FE software, which allows to discretize complex geometries. In this paper, a Round Robin among eleven Italian Universities has been performed to calibrate the PSM with seven different commercial FE software packages. Several 3D mode I, II and III problems have been considered to investigate the influence of (i) FE code, (ii) element type, (iii) mesh pattern, and (iv) procedure to extrapolate stresses at FE nodes. The majority of the adopted FE software packages present similar values of the PSM parameters, the main source of discrepancy being the stress extrapolation method at FE nodes.
Databáze: OpenAIRE
Externí odkaz:
Nepřihlášeným uživatelům se plný text nezobrazuje