Author: Sharifimehr Shahriar
Publisher: Edp Sciences
E-ISSN: 2261-236x|165|issue|16012-16012
ISSN: 2261-236x
Source: MATEC Web of conference, Vol.165, Iss.issue, 2018-05, pp. : 16012-16012
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
The goal of this study was to evaluate the accuracy of different methods in correlating uniaxial fatigue properties to shear fatigue properties, as well as finding a reliable estimation method which is able to predict the shear fatigue behavior of steels and titanium alloys from their monotonic properties. In order to do so, axial monotonic as well as axial and torsion fatigue tests were performed on two types of steel and a Ti-6Al-4V alloy. The results of these tests along with test results of 23 types of carbon steel, Inconel 718, and three types of titanium alloys commonly used in the industry were analyzed. It was found that von Mises and maximum principal strain criteria were able to effectively correlate uniaxial fatigue properties to shear fatigue properties for ductile and brittle behaving materials, respectively. Also, it was observed that for steels and Inconel 718 obtaining shear fatigue properties from uniaxial fatigue properties which are in turn calculated from Roessle-Fatemi estimation method resulted in reasonable estimations when compared to experimentally obtained uniaxial fatigue properties. Furthermore, a modification was made to the Roessle-Fatemi hardness method in order to adjust it to fatigue behavior of titanium alloys. The modified method, which was derived from uniaxial fatigue properties of titanium alloys with Brinell hardness between 240 and 353 proved to be accurate in predicting the shear fatigue behaviors.
Related content
The influence of the structure on the fatigue properties of aluminium alloys for the casting
MATEC Web of conference, Vol. 157, Iss. issue, 2018-03 ,pp. :
COMBINED CREEP AND FATIGUE PROPERTIES
By Meleka A. H.
International Materials Reviews, Vol. 7, Iss. 1, 1962-01 ,pp. :