Journal ArticleDOI
Ratchetting–multiaxial fatigue damage analysis in gear rolling contact considering tooth surface roughness
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TLDR
In this article, an elastic-plastic finite element contact fatigue model was proposed considering the optically measured tooth surface roughness and the gear contact geometry, and the contribution of the ratchetting-fatigue damage in the mechanism of gear contact fatigue problems was discussed.About:
This article is published in Wear.The article was published on 2019-06-15. It has received 31 citations till now. The article focuses on the topics: Tooth surface & Surface roughness.read more
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Effect of shot peening coverage on residual stress and surface roughness of 18CrNiMo7-6 steel
TL;DR: In this article, the residual stress and surface topography obtained by various shot peening treatments were experimentally and theoretically examined, and it was found that the ratio between the layer thickness of compressive stress and the critical depth of maximum stress generally lies in the regime of 3.6-4.3 after shot-peening.
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Effect of shot peening coverage on hardness, residual stress and surface morphology of carburized rollers
TL;DR: In this article, the effect of shot peening coverage on residual stress, surface roughness, microhardness and microstructure of rollers is investigated, and it is shown that the shot-peening leads to a slight increase of surface and near-surface hardness from 690 HV to 740 HV, and an appreciably increasing of the subsurface maximum compressive residual stress.
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Investigation on the effect of shot peening coverage on the surface integrity
TL;DR: In this article, a multiple-shot model was used to estimate the evolution of shot peening coverage and the influences of coverage on residual stress, plastic strain and surface topography, and the predicted results reveal that as the shot-peening coverage increases from 100% to 400% under the given processing condition, the maximum residual stress and plastic strain will increase gradually.
Journal ArticleDOI
Effect of shot peening intensity on surface integrity of 18CrNiMo7-6 steel
TL;DR: In this paper, the effect of different shot peening parameters on the peening intensity and the influence of which on surface integrity parameters of carburized steel rollers was explored. And the intensity was mainly affected by the shot diameter (36.73%), air pressure (32.07%), and shot flow rate (23.11%).
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Numerical simulation of competing mechanism between pitting and micro-pitting of a wind turbine gear considering surface roughness
TL;DR: In this paper, an elastic-plastic finite element contact fatigue model is proposed in which the surface roughness is explicitly measured through an optical profiler, and the relationship between the dimensionless normal loads and the contact area ratio is plotted.
References
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Journal ArticleDOI
On some modifications of kinematic hardening to improve the description of ratchetting effects
TL;DR: In this article, the authors consider several special kinematic hardening rules and their properties in tension-compression and select a particular rule which offers a good compromise, describing both the shape of the normal cyclic stress-strain relations and the ratchetting results.
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Kinematic hardening rules with critical state of dynamic recovery, part I: formulation and basic features for ratchetting behavior
Nobutada Ohno,J.-D. Wang +1 more
TL;DR: In this paper, a set of kinematic hardening rules for simulating rachetting behavior is presented, where each component has a critical state for its dynamic recovery to be activated fully.
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Modeling of cyclic ratchetting plasticity, part i: Development of constitutive relations
Yanyao Jiang,Huseyin Sehitoglu +1 more
TL;DR: In this article, an Armstrong-Frederick type hardening rule utilizing the concept of a limiting surface for the backstresses was proposed to predict long-term ratchetting rate decay as well as constant ratcheting rate for both proportional and nonproportional loadings.
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Finite element modeling of elasto-plastic contact between rough surfaces
TL;DR: In this paper, a finite element calculation of frictionless, non-adhesive, contact between a rigid plane and an clasto-plastic solid with a self-affine fractal surface was conducted within an explicit dynamic Lagrangian framework.
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Ratchetting: Recent progresses in phenomenon observation, constitutive modeling and application
TL;DR: In this paper, the recent progresses in phenomenon observation and constitutive modeling for the ratchetting behavior of metals, polymers and composites are reviewed first, and some suggestions for further studies are proposed as a conclusion of the review.