Relation between the cyclic fatigue strength and characteristics of the damping ability of steels

1981 ◽  
Vol 13 (10) ◽  
pp. 1213-1216
Author(s):  
B. S. Shul'ginov ◽  
A. I. Bykovskii
Keyword(s):  
Fatigue Strength ◽  
Cyclic Fatigue

scholarly journals A Simple Method to Evaluate Cyclic Fatigue Strength in Ceramics.

1998 ◽  
Vol 64 (623) ◽  
pp. 1826-1830
Author(s):  
Takeshi OGAWA ◽  
Hiroshi KAWAMOTO ◽  
Takeichi SHIRAI
Keyword(s):  
Fatigue Strength ◽  
Cyclic Fatigue ◽  
Simple Method

scholarly journals Application of a √ area -Approach for Fatigue Assessment of Cast Aluminum Alloys at Elevated Temperature

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1033 ◽  
Author(s):  
Roman Aigner ◽  
Christian Garb ◽  
Martin Leitner ◽  
Michael Stoschka ◽  
Florian Grün
Keyword(s):  
Elevated Temperature ◽  
Fatigue Strength ◽  
Room Temperature ◽  
Elevated Temperatures ◽  
Damage Mechanism ◽  
Cyclic Fatigue ◽  
Fatigue Tests ◽  
Cast Aluminum ◽  
Fatigue Assessment ◽  
Cast Aluminum Alloys

This paper contributes to the effect of elevated temperature on the fatigue strength of common aluminum cast alloys EN AC-46200 and EN AC-45500. The examination covers both static as well as cyclic fatigue investigations to study the damage mechanism of the as-cast and post-heat-treated alloys. The investigated fracture surfaces suggest a change in crack origin at elevated temperature of 150 ∘ C. At room temperature, most fatigue tests reveal shrinkage-based micro pores as their crack initiation, whereas large slipping areas occur at elevated temperature. Finally, a modified a r e a -based fatigue strength model for elevated temperatures is proposed. The original a r e a model was developed by Murakami and uses the square root of the projected area of fatigue fracture-initiating defects to correlate with the fatigue strength at room temperature. The adopted concept reveals a proper fit for the fatigue assessment of cast Al-Si materials at elevated temperatures; in detail, the slope of the original model according to Murakami should be decreased at higher temperatures as the spatial extent of casting imperfections becomes less dominant at elevated temperatures. This goes along with the increased long crack threshold at higher operating temperature conditions.

Shape Optimization of a Small Bus Steering Knuckle Considering a Fatigue Load

2013 ◽  
Vol 740 ◽  
pp. 319-322 ◽  
Author(s):  
Young Choon Lee ◽  
Nam Jin Jeon ◽  
Cheol Kim ◽  
Seo Yeon Ahn ◽  
Myung Jae Cho
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fatigue Life ◽  
Fatigue Strength ◽  
Shape Optimization ◽  
Minimum Weight ◽  
Cyclic Fatigue ◽  
Fatigue Load ◽  
Element Analysis ◽  
Gradient Based

Finite element analysis was accomplished for a steering knuckle component of a small bus to see whether the static and fatigue strength requirements were satisfied or not. The knuckle was modeled with ANSYS 10-node quadratic elements. The cyclic fatigue load was applied and Soderberg criteria were applied to check the fatigue life. The knuckle structure has an infinite life (10-6 cycle) judging from the fatigue analyses. Shape optimization based on the gradient based method has been performed in order to find out the knuckle shape that has a minimum weight and satisfies the static and fatigue strength requirements. As a result of shape optimization, the weight of the steering knuckle was reduced 8%.

Fatigue Properties of Aluminium Alloys for Uniaxial Cyclic Loads

2014 ◽  
Vol 598 ◽  
pp. 13-19
Author(s):  
Ewelina Böhm ◽  
Tadeusz Łagoda
Keyword(s):  
Fatigue Strength ◽  
Chemical Composition ◽  
Aluminium Alloys ◽  
Cyclic Fatigue ◽  
Fatigue Tests ◽  
Fatigue Properties ◽  
Cyclic Loads ◽  
Fatigue Characteristics

The paper presents an analysis of aluminium and its alloys in terms of fatigue strength. The paper contains information in terms of cyclic fatigue tests of aluminium alloys. On the basis of available literature data, Basquin fatigue characteristics have been designated. On their basis a comparison between chosen fatigue characteristics of aluminium alloys with different chemical composition and element percentage in the substance have been done.

scholarly journals Cyclic Fatigue Strength of Crack-healed Si3N4/SiC Composite Ceramics for Spring.

2000 ◽  
pp. 19-23
Author(s):  
Feiyuan YAO ◽  
Kotoji ANDO ◽  
Min-Cheol CHU ◽  
Shigemi SATO
Keyword(s):  
Fatigue Strength ◽  
Cyclic Fatigue ◽  
Composite Ceramics

scholarly journals Effect of Polishing oh Cyclic Fatigue Strength of CAD/CAM Ceramics.

1999 ◽  
Vol 18 (4) ◽  
pp. 395-402 ◽  
Author(s):  
Takahiro NAKAZATO ◽  
Hidekazu TAKAHASHI ◽  
Masashi YAMAMOTO ◽  
Fumio NISHIMURA ◽  
Norimasa KUROSAKI
Keyword(s):  
Fatigue Strength ◽  
Cyclic Fatigue ◽  
Cad Cam
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