The fatigue growth of surface flaws in both smooth and notched round bars subjected to rotary bending was numerically simulated by means of a twoparameter theoretical model proposed by the first author. The stress intensity factor distribution along the crack front was needed in order to apply the model. Therefore, finite element analyses and the superposition principle were used to determine such a distribution for a wide range of crack configurations and any position of the flaw with respect to the bending moment axis. The results related to rotary bending are compared to those related to pulsating cyclic bending, and a qualitative comparison is made with some data reported in the literature.
Analysis of cracked and notched round bars under rotary bending / Carpinteri, Andrea; Ronchei, Camilla; Vantadori, Sabrina. - In: MATERIALS PERFORMANCE AND CHARACTERIZATION. - ISSN 2165-3992. - 4:2(2015), pp. 131-142. [10.1520/MPC20140025]
Analysis of cracked and notched round bars under rotary bending
CARPINTERI, Andrea;RONCHEI, Camilla;VANTADORI, Sabrina
2015-01-01
Abstract
The fatigue growth of surface flaws in both smooth and notched round bars subjected to rotary bending was numerically simulated by means of a twoparameter theoretical model proposed by the first author. The stress intensity factor distribution along the crack front was needed in order to apply the model. Therefore, finite element analyses and the superposition principle were used to determine such a distribution for a wide range of crack configurations and any position of the flaw with respect to the bending moment axis. The results related to rotary bending are compared to those related to pulsating cyclic bending, and a qualitative comparison is made with some data reported in the literature.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
