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 article, the authors evaluate both the time and the frequency domain approaches using a large platform as an example and propose a novel approach for the time domain fatigue analysis which drastically reduces the computational burden, while maintaining a high degree of accuracy.
28 citations
TL;DR: In this article, warm laser shock peening (WLSP) technology was successfully applied as a post weld treatment in present work and significant 42.3% increase in high cycle vibration fatigue limit was achieved.
28 citations
TL;DR: In this article, the effects of the combined cycle situation upon the total fatigue life were investigated and it was found that the effect of the CCF combined loading is variable and dependent upon the conditions during testing.
28 citations
TL;DR: In this paper, a non-proportionality correlation function is proposed to interrelate the resulting power spectrum density (PSD) of normal and shear traction stresses and their cross-PSD for establishing an effective stress parameter.
28 citations
TL;DR: In this paper, a high-cycle fatigue life model for structures subjected to variable amplitude multiaxial loading is presented, which is characterized by the choice of a damage factor related to the accumulated mesoscopic plastic strain per stabilised cycle, and the use of a mesoscopic mechanical behaviour taking into account the fatigue mechanisms such as plasticity and void growth.
Abstract: A high-cycle fatigue life model for structures subjected to variable amplitude multiaxial loading is presented in this paper. It treats any kind of repeated blocks of variable amplitude multiaxial loading without using a cycle counting method. This model based on a mesoscopic approach is characterized by the following features: (i) the choice of a damage factor related to the accumulated mesoscopic plastic strain per stabilised cycle; (ii) the use of a mesoscopic mechanical behaviour taking into account the fatigue mechanisms such as plasticity and void growth. This behaviour is a von Mises elastoplastic model with linear kinematic hardening and hydrostatic stress dependent yield stress. The fatigue life model has six parameters identified with one SN curve and two fatigue limits. In-phase and out-of-phase experimental tests from the literature are simulated. The predicted fatigue lives are compared to experimental ones.
27 citations