Topic
Vibration fatigue
About: Vibration fatigue is a research topic. Over the lifetime, 3460 publications have been published within this topic receiving 46297 citations.
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TL;DR: In this paper, a MATLAB code is written which transforms the multiaxial cyclic stress state into a uniaxially cyclic state to use with the equivalent stress based methods.
Abstract: Several equivalent stress methods and more advanced critical plane criteria are compared in terms of their performance in fatigue life estimations under uniaxial and biaxial loadings in which the effect of phase is investigated. For this purpose a MATLAB code is written which transforms the multiaxial cyclic stress state into a uniaxial cyclic stress to use with the equivalent stress based methods. For critical plane approaches the program searches a damage parameter on all material planes. The maximum damage parameter is then compared with a material allowable obtained from uniaxial fatigue tests for life estimation. In addition, various methods for calibration of the material coefficient k and prominent stress history enclosure methods to calculate the shear stress amplitude are also studied for determining their effect on the performance of critical plane approaches.
17 citations
TL;DR: In this article, a probabilistic model based on weakest-link theory was used to evaluate the finite fatigue life of case hardened gears in the finite-life regime with case hardening and plastic deformation.
17 citations
TL;DR: In this paper, the relationship between actual stresses, defect geometry and fatigue life is examined, by combining local stresses with the material damping effect, the actual stresses operating in the region of the fatigue initiating defect were established.
17 citations
15 Jun 2008-Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
TL;DR: In this article, the applied stress distribution of the pulley under high-tension and torque was obtained by using finite element analysis, and the fatigue life of a pulley with the variation of the fatigue strength was estimated by a durability analysis simulator.
Abstract: The applied stress distribution of the pulley under high-tension and torque was obtained by using finite element analysis. Based on these results, the fatigue life of the pulley with the variation of the fatigue strength was estimated by a durability analysis simulator. The results at 50% and 1% for the failure probability were compared with the fatigue life. In addition to the optimum design, the fatigue life was obtained by the response surface method. The response surface method is a statistical method to model approximately and analyze the response surface. Moreover, the validity of optimum design considering its durability was verified by the fatigue test.
16 citations
TL;DR: This paper presents a numerical strategy for calculating the local multiaxial fatigue damage based on the frequency formulation of the sines criterion developed in the laboratory and a finite element example is used to illustrate the application of the proposed strategy.
16 citations