Long-life multiaxial fatigue of a nodular graphite cast iron

Marquis, Gary; Karjalainen-Roikonen, Päivi

doi:10.1016/s1566-1369(03)80007-9

Cited by 10 publications

(9 citation statements)

References 10 publications

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“…This prediction is close to experimental results on nodular cast iron 21 while it clearly overestimates the effect of stress ratio in the case of high strength steels.…”

Section: Comparative Application Of Criteriasupporting

confidence: 88%

“…Recent experiments on nodular cast iron by Marquis and Karjalainen‐Roikonen 21 have confirmed this prediction, i.e., that dependence on R is the same under tension and torsion with the presence of defects.…”

Section: Comparative Application Of Criteriamentioning

confidence: 80%

“…Considering torsional fatigue, the experiments on fatigue of materials with natural defects show that the torsional fatigue properties are dependent on stress ratio 21, 22 . The multiaxial criteria (Dang Van's as well as other theories) which express the stress ratio effect in terms of the hydrostatic stress are not able to predict any dependence of torsional strength on stress ratio.…”

Section: Comparative Application Of Criteriamentioning

confidence: 99%

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Application of multiaxial fatigue criteria to materials containing defects

Beretta

2003

Fatigue Fract Eng Mat Struct

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Estimation of fatigue strength under biaxial and multiaxial loading is usually based on the assumption that fatigue limit is the limit stress for crack nucleation. However, in presence of defects and inhomogeneities the fatigue limit is determined by the threshold condition of small cracks. Nevertheless, multiaxial criteria, especially the Dang Van's criterion, could be successfully applied to defective materials. The scope of this paper is to discuss the differences in the two approaches (multiaxial criteria versus mechanics of the small cracks) for fatigue design of components containing defects subjected to biaxial and multiaxial in‐phase loading. In particular it will be discussed, on the basis of the fatigue properties of large springs, the need of a correct description of the fatigue mechanism in order to determine the lower bound of fatigue strength in presence of defects.

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“…This prediction is close to experimental results on nodular cast iron 21 while it clearly overestimates the effect of stress ratio in the case of high strength steels.…”

Section: Comparative Application Of Criteriasupporting

confidence: 88%

Section: Comparative Application Of Criteriamentioning

confidence: 80%

Section: Comparative Application Of Criteriamentioning

confidence: 99%

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Application of multiaxial fatigue criteria to materials containing defects

Beretta

2003

Fatigue Fract Eng Mat Struct

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“…The effect of biaxial stress on Mode I crack growth for AISI316 stainless steel was reported by Gary et al [5]. At low stresses, the effect of the transverse stress is small with the biaxial tension (λ = 1) having the lowest growth rate.…”

Section: Figure 1: Comparison Between Predicted and Experimental Resumentioning

confidence: 70%

“…Because failure in nodular cast iron is controlled by the nucleation and growth of small cracks from inclusions and pores, the second principal stress influences the fatigue strength [5]. Crack driving force near a notch is greater in the case of λ= -1 as compared to λ=0, where λ is the ratio of second to the first principal stresses as illustrated in figure 2.…”

Section: Figure 1: Comparison Between Predicted and Experimental Resumentioning

confidence: 99%

A Study of the Effects of Loading Amplitude and Induced Stress Ratio Stress Ratio on Fatigue Life of a Nodular Graphite Cast Iron Structure Structure Undergoing Multi-Axial Proportional Cyclic Loading

Mohammed¹,

Kachit²

2018

IJMPERD

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This effect is directly related to the maximum Von Mises stress. The latter increases in a linear fashion as R increasesfrom -1 to +1, and exhibits a maximum value at R equals to -1. Also, it is found that fatigue life and Von Mises stress are highly dependent on the induced stress ratio (σ/τ). Von Mises stress increases as stress ratio increases. In a reverse manner, fatigue life increases slowly as the ratio /increases. This result concludes the strong effect, on fatigue life, of the presence of the axial load within the multi-axial cyclic loading. In fact, axial loading favors the mode I crack which propagates rapidly perpendicularly to the axis of axial loading.

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