scholarly journals Dependence of threshold stress intensity factor range .DELTA.Kth on crack size and geometry, and material properties.

1986 ◽  
Vol 52 (478) ◽  
pp. 1492-1499 ◽  
Author(s):  
Yukitaka MURAKAMI ◽  
Kenji MATSUDA
Keyword(s):  
Stress Intensity Factor ◽  
Stress Intensity ◽  
Intensity Factor ◽  
Material Properties ◽  
Threshold Stress ◽  
Crack Size ◽  
Stress Intensity Factor Range ◽  
Threshold Stress Intensity ◽  
Threshold Stress Intensity Factor

Effect of Overload on the Threshold Stress Intensity Factor Range of SUS316 as a Function of Crack Size

2010 ◽  
Author(s):  
Kotoji Ando ◽  
Koji Takahashi ◽  
Yasuaki Hashikura ◽  
Keiji Houjyou
Keyword(s):  
Stress Intensity Factor ◽  
Stress Intensity ◽  
Intensity Factor ◽  
Threshold Stress ◽  
Crack Size ◽  
Fatigue Tests ◽  
Stress Intensity Factor Range ◽  
Threshold Stress Intensity ◽  
Dugdale Model ◽  
Threshold Stress Intensity Factor

The effects of overload on the threshold stress intensity factor range (ΔKth) in SUS316 were studied. Tensile overload was applied to a CT(Compact tensiton) specimen of SUS316. Then, fatigue tests were carried out to determine the resultant threshold stress intensity factor range (ΔKth). The mechanism of the improvement of ΔKth by the tensile overloading was analyzed using the Dugdale model. It was clarified that the value of ΔKth increases as increasing the overloading. The compressive residual stress intensity factor (Kr) is the key factor controlling the value of ΔKth.

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