Estimation of Subsurface Crack Initiation lives for a High Strength Steel under Variable Amplitude Loading Test

2003 ◽  
Vol 2003.1 (0) ◽  
pp. 169-170 ◽  
Author(s):  
Masaki NAKAJIMA ◽  
Hisatake ITOGA ◽  
Nami KAMIYA ◽  
Keiro TOKAJI ◽  
Haeng Nam KO
Keyword(s):  
Crack Initiation ◽  
High Strength Steel ◽  
High Strength ◽  
Subsurface Crack ◽  
Loading Test ◽  
Variable Amplitude Loading ◽  
Variable Amplitude

scholarly journals Variable Amplitude Loading Tests for a High Strength Steel Considering the Transition of Failure Mode in High Cycle Regime

2003 ◽  
Vol 52 (11) ◽  
pp. 1305-1310 ◽  
Author(s):  
Masaki NAKAJIMA ◽  
Keiro TOKAJI ◽  
Hisatake ITOGA ◽  
Toshihiro SHIMIZU ◽  
Nami KAMIYA
Keyword(s):  
Failure Mode ◽  
High Strength Steel ◽  
High Strength ◽  
Variable Amplitude Loading ◽  
Variable Amplitude ◽  
Loading Tests

Very High Cycle Fatigue Behavior and Thermographic Analysis of High Strength Steel

2010 ◽  
Vol 118-120 ◽  
pp. 948-951
Author(s):  
Chuang Shao ◽  
Claude Bathias ◽  
Danièle Wagner ◽  
Hua Tao
Keyword(s):  
Crack Initiation ◽  
High Strength Steel ◽  
High Cycle Fatigue ◽  
Fatigue Testing ◽  
Fatigue Behavior ◽  
High Strength ◽  
Cycle Fatigue ◽  
Subsurface Crack ◽  
Very High Cycle Fatigue ◽  
Very High

Very high cycle fatigue behavior of high strength steel, were investigated using ultrasonic fatigue testing equipment at 20 kHz up to 109cycles. S-N curves at room temperature with different stress ratio (R=0.01 and R=0.1) was determined. The experimental results show that fatigue strength decrease with increasing number of cycles between 105 and 109. SEM examination of fracture surface reveals that fatigue damage was governed by the formation of cracks, and subsurface crack initiation was in the very long life range. The results shown that the portions of life attributed to subsurface crack initiation between 107 and 109 cycles are 99%.

Estimation of fatigue limit in subsurface fracture for a high strength steel under variable amplitude loading tests

2003 ◽  
Vol 2003 (0) ◽  
pp. 345-346
Author(s):  
Masaki NAKAJIMA ◽  
Nami KAMIYA ◽  
Hisatake ITOGA ◽  
Keiro TOKAJI ◽  
Haeng Nam KO
Keyword(s):  
Fatigue Limit ◽  
High Strength Steel ◽  
High Strength ◽  
Variable Amplitude Loading ◽  
Variable Amplitude ◽  
Loading Tests

scholarly journals Experimental Estimation of Subsurface Crack Initiation Lives and Intrinsic Fatigue Limit in a High Strength Steel

2004 ◽  
Vol 70 (699) ◽  
pp. 1636-1642 ◽  
Author(s):  
Masaki NAKAJIMA ◽  
Nami KAMIYA ◽  
Hisatake ITOGA ◽  
Keiro TOKAJI ◽  
Haeng-Nam KO
Keyword(s):  
Crack Initiation ◽  
Fatigue Limit ◽  
High Strength Steel ◽  
High Strength ◽  
Subsurface Crack ◽  
Experimental Estimation
Sign in / Sign up

Export Citation Format

Share Document