scholarly journals Errata: “New Estimation Method of Fatigue Properties of Aluminum Alloys” [ASME Journal of Engineering Materials and Technology, 2003, Vol. 125, No. 2, pp. 208–214]

2003 ◽  
Vol 125 (3) ◽  
pp. 341-341
Author(s):  
Jun-Hyub Park and ◽  
Ji-Ho Song
Keyword(s):  
Aluminum Alloys ◽  
Estimation Method ◽  
Fatigue Properties ◽  
Engineering Materials ◽  
Asme Journal

New Estimation Method of Fatigue Properties of Aluminum Alloys

2003 ◽  
Vol 125 (2) ◽  
pp. 208-214 ◽  
Author(s):  
Jun-Hyub Park ◽  
Ji-Ho Song
Keyword(s):  
Aluminum Alloys ◽  
Optimization Technique ◽  
Estimation Method ◽  
Correlation Method ◽  
New Method ◽  
Fatigue Properties ◽  
Tensile Data ◽  
Point Correlation ◽  
Quantitative Manner ◽  
Life Predictions

A new method on estimating fatigue properties from simple tensile data was proposed for aluminum alloys. The method is based on experimental strain-life curves. An optimization technique was used to get the best fatigue properties. The four-point correlation method, the universal slopes method, Mitchell’s method, the modified universal slopes method, the uniform material law by Ba¨umel and Seeger, the modified four-point correlation method by Ong and a new method proposed in this work were evaluated in a quantitative manner. Mitchell’s method, the uniform materials law and the new method give good life predictions for aluminum alloys. In particular, the new method provided the best results.

scholarly journals Microstructure and fatigue properties of extruded aluminum alloys 7046 and 7108 for automotive applications

2021 ◽  
Vol 14 ◽  
pp. 2970-2981
Author(s):  
C.S. Hattori ◽  
G.F.C. Almeida ◽  
R.L.P. Gonçalves ◽  
R.G. Santos ◽  
R.C. Souza ◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
Fatigue Properties ◽  
Automotive Applications

scholarly journals Evaluation of Fatigue Characteristics of Aluminum Alloys and Mechanical Components Using Extreme Value Statistics and C-specimens

Metals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1915
Author(s):  
Jungsub Lee ◽  
Sang-Youn Park ◽  
Byoung-Ho Choi
Keyword(s):  
Aluminum Alloys ◽  
Fem Analysis ◽  
Extreme Value ◽  
Fatigue Tests ◽  
Extreme Value Statistics ◽  
Fatigue Properties ◽  
Chemical Compositions ◽  
Cross Sectional ◽  
Fatigue Characteristics ◽  
Mechanical Components

In this study, the fatigue characteristics of aluminum alloys and mechanical components were investigated. To evaluate the effect of forging, fatigue specimens with the same chemical compositions were prepared from billets and forged mechanical components. To evaluate the cleanliness of the aluminum alloys, the cross-sectional area of specimens was observed, and the maximum inclusion sizes were obtained using extreme value statistics. Rotary bending fatigue tests were performed, and the fracture surfaces of the specimens were analyzed. The results show that the forging process not only elevated the fatigue strength but also reduced the scatter of the fatigue life of aluminum alloys. The fatigue characteristics of C-specimens were obtained to develop finite-element method (FEM) models. With the intrinsic fatigue properties and strain–life approach, the FEM analysis results agreed well with the test results.

Effects of HIPping on high-cycle fatigue properties of investment cast A356 aluminum alloys

2003 ◽  
Vol 340 (1-2) ◽  
pp. 123-129 ◽  
Author(s):  
Min Ha Lee ◽  
Jae Joong Kim ◽  
Kyung Hoon Kim ◽  
Nack J. Kim ◽  
Sunghak Lee ◽  
...  
Keyword(s):  
Aluminum Alloys ◽  
High Cycle Fatigue ◽  
Fatigue Properties ◽  
Cycle Fatigue ◽  
Investment Cast ◽  
A356 Aluminum

Pore Size Distribution and the Fatigue Properties of Several Cast Aluminum Alloys

2010 ◽  
Vol 139-141 ◽  
pp. 251-254
Author(s):  
Yuan Bin Zhang ◽  
Hui Luo ◽  
Tong Guang Zhai
Keyword(s):  
Aluminum Alloys ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Size Distribution ◽  
Fatigue Testing ◽  
Ambient Air ◽  
Fatigue Properties ◽  
Materials Testing ◽  
Cast Aluminum ◽  
Cast Aluminum Alloys

The population and size of porosities in three kinds of cast aluminum alloys, i.e. A713, A356T6-1 and A356T6-2, were statistically measured using a commercial software Spirit, and several distribution functions were tried to fit the cumulative pore size distribution data. It was found that a general extreme value (GEV) distribution function was the most appropriate function to quantify the cumulative pore size distribution in these cast aluminum alloys. The stress-number of cycles to failure (S-N) curves of these alloys were characterized by four point bend fatigue testing on MTS810 materials testing system, with the parameter f=20Hz, R=0.1, and in ambient air. The fatigue strength of A713, A356T6-1 and A356T6-2 aluminum alloy was measured to be 94.5 MPa, 150.6MPa and 117.3MPa respectively. The fatigue properties of these alloys could not be evaluated just by population and size distribution of the pores, the microstructure state, shape and position of pores, and other weakest links that may initiate a fatigue crack should be taken into account synthetically.

scholarly journals Evaluation of Estimation Methods for Shear Fatigue Properties and Correlations with Uniaxial Fatigue Properties for Steels and Titanium Alloys

2018 ◽  
Vol 165 ◽  
pp. 16012 ◽  
Author(s):  
Shahriar Sharifimehr ◽  
Ali Fatemi
Keyword(s):  
Titanium Alloys ◽  
Inconel 718 ◽  
Fatigue Behavior ◽  
Estimation Method ◽  
Fatigue Tests ◽  
Estimation Methods ◽  
Fatigue Properties ◽  
Modified Method ◽  
Shear Fatigue ◽  
Von Mises

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.

scholarly journals Fatigue Properties of Welded Joints for JIS Aluminum Alloys.

1996 ◽  
Vol 62 (601) ◽  
pp. 1972-1978
Author(s):  
Hisashi HIRUKAWA ◽  
Saburo MATSUOKA ◽  
Etsuo TAKEUCHI ◽  
Satoshi NISHIJIMA
Keyword(s):  
Aluminum Alloys ◽  
Welded Joints ◽  
Fatigue Properties
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