Fatigue Crack Closure and Estimation Method of Crack Propagation Rate under Stationary Varying Loading Conditions Including Random Loading : 2nd Report, Extension of the Method to High Propagation Rate Regime

真, 菊川; 政弘, 城野; 良之, 近藤

doi:10.1299/kikaia.49.278

Cited by 10 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, a commercial clip gauge was not applied to these small CT specimens. Therefore, clip gauges were self-produced in this study incorporating a design proposed by Kikukawa et al 12) Each clip gauge consisted of two spring sheets, four strain gauges and two aluminum spacers, as shown in the schematic illustration in Fig. 2(a).…”

Section: Methodsmentioning

confidence: 99%

Effect of ARB Processing on Fatigue Crack Closure in Commercially Pure Titanium

et al. 2013

View full text Add to dashboard Cite

Fatigue crack closure in commercially pure titanium sheets severely deformed using the accumulative roll-bonding (ARB) process were investigated. Sheet processed through 6 cycles of ARB consists of fine equiaxed grains and elongated lamellar grains and shows a high 0.2% proof stress of 790 MPa. Fatigue crack closure was not observed in the ARB processed sheet. The effective threshold stress intensity factor ranges, "K th.eff , of the ARB processed sheets and starting sheet are nearly the same. On the other hand, the resistance of the fatigue crack growth rate of the ARB processed sheet is higher than that of the starting sheet. It was found that ARB increases the resistance for the fatigue crack propagation but has no effect on the onset of propagation.

show abstract

Section: Methodsmentioning

confidence: 99%

Effect of ARB Processing on Fatigue Crack Closure in Commercially Pure Titanium

et al. 2013

View full text Add to dashboard Cite

show abstract

“…It is concluded from results obtained above that equation ( 16) is superior to equation (15) in predicting the crack growth life safely. Moreover, by using equation (16), it is possible to shorten the term of fatigue test under constant loading and to calculate the crack growth life in simple and easy rather than equation (15).…”

Section: Effect Of the Maximum Stress Under Constant Loading On Crack...mentioning

confidence: 99%

“…Under this situation, as the prediction method with only merits in both methods, it was attempted to consider the effect of crack closure behavior in the linear cumulative damage rule. The concept of this proposition is published by Kikukawa et al (13)(14)(15)(16) However, in their papers, the crack growth rate was discussed. Therefore, an integration of crack growth rate was necessary to predict the crack growth life.…”

Section: Introductionmentioning

confidence: 99%

OS15F098 Prediction of Fatigue Crack Growth Life Considered Crack Closure Behavior to Linear Cumulative Damage Rule

Kobayashi

Ohtsuka

Kishimoto

et al. 2011

ATEM

View full text Add to dashboard Cite

In this study, a method was proposed to predict the crack growth life from the linear cumulative damage rule considering the change of effective stress range due to load variance. In order to confirm a usefulness of this proposition, a series of fatigue test using round bar specimens with small hole was carried out under several two step loadings with various ratios of high load excursion. The obtained fatigue life was compared with the predicted life by the linear cumulative damage rule. Although a good agreement was recognized from two lives when the ratio of high load excursion was high, there was a difference between two lives when the ratio of high load excursion was small. However, the modified life agreed with the real fatigue life in all ratios of high load excursion when the predicted life was modified by the change of effective stress range under two step loading.

show abstract

Important Problems in Fatigue Crack Growth of Materials

Song

Kim

2022

KAIST Research Series

View full text Add to dashboard Cite

Fatigue Crack Closure and Estimation Method of Crack Propagation Rate under Stationary Varying Loading Conditions Including Random Loading : 2nd Report, Extension of the Method to High Propagation Rate Regime

Cited by 10 publications

References 0 publications

Effect of ARB Processing on Fatigue Crack Closure in Commercially Pure Titanium

Effect of ARB Processing on Fatigue Crack Closure in Commercially Pure Titanium

OS15F098 Prediction of Fatigue Crack Growth Life Considered Crack Closure Behavior to Linear Cumulative Damage Rule

Important Problems in Fatigue Crack Growth of Materials

Contact Info

Product

Resources

About