In the present paper, a new formulation of the modified C-S criterion is discussed.The modified C-S criterion is a critical-plane-based multiaxial high-cycle fatigue criterion, where the multiaxial fatigue limit condition is represented by a quadratic combination of the equivalent normal stress and the shear stress amplitude, acting on the critical plane. The new formulation here proposed consists in the implementation of the Maximum Rectangular Hull (MRH) method (to evaluate the shear stress amplitude), which is very simple and computationally more efficientthan the Minimum Bounding Circle method. Some experimental data available in the literature are analysed, and the fatigue strength estimations determined by applying both the above new formulation of the modified C-S criterion (based on the critical plane approach) and the Araújo et al. criterion (based on the stress invariants approach) are compared.
Scheda prodotto non validato
Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo
Titolo: | MRH method and modified C-S (Carpinteri-Spagnoli) criterion |
Autori: | |
Data di pubblicazione: | 2013 |
Abstract: | In the present paper, a new formulation of the modified C-S criterion is discussed.The modified C-S criterion is a critical-plane-based multiaxial high-cycle fatigue criterion, where the multiaxial fatigue limit condition is represented by a quadratic combination of the equivalent normal stress and the shear stress amplitude, acting on the critical plane. The new formulation here proposed consists in the implementation of the Maximum Rectangular Hull (MRH) method (to evaluate the shear stress amplitude), which is very simple and computationally more efficientthan the Minimum Bounding Circle method. Some experimental data available in the literature are analysed, and the fatigue strength estimations determined by applying both the above new formulation of the modified C-S criterion (based on the critical plane approach) and the Araújo et al. criterion (based on the stress invariants approach) are compared. |
Handle: | http://hdl.handle.net/20.500.11770/304683 |
ISBN: | 978-88-8239-183-6 |
Appare nelle tipologie: | 4.1 Contributo in Atti di convegno |