scholarly journals Fatigue Limit Estimation Based on Dissipated Energy Evaluation to the Influence of Grain Size for SUS 304 Steel Specimens

2013 ◽  
Vol 79 (807) ◽  
pp. 1581-1592 ◽  
Author(s):  
Atsushi AKAI ◽  
Daiki SHIOZAWA ◽  
Takahide SAKAGAMI
Keyword(s):  
Grain Size ◽  
Fatigue Limit ◽  
Dissipated Energy ◽  
Energy Evaluation

scholarly journals Energy Dissipation Measurement in Improved Spatial Resolution Under Fatigue Loading

2019 ◽  
Vol 60 (2) ◽  
pp. 181-189
Author(s):  
A. Akai ◽  
D. Shiozawa ◽  
T. Yamada ◽  
T. Sakagami
Keyword(s):  
Fatigue Crack ◽  
Energy Dissipation ◽  
Crack Initiation ◽  
Fatigue Limit ◽  
Spatial Resolution ◽  
Fatigue Crack Initiation ◽  
Fatigue Loading ◽  
Dissipated Energy ◽  
Damage Initiation ◽  
Slip Bands

Abstract Recently, a technique for rapidly determining a material’s fatigue limit by measuring energy dissipation using infrared thermography has received increasing interest. Measuring the energy dissipation of a material under fatigue loading allows the rapid determination of a stress level that empirically coincides with its fatigue limit. To clarify the physical implications of the rapid fatigue limit determination, the relationship between energy dissipation and fatigue damage initiation process was investigated. To discuss the fatigue damage initiation process at grain size scale, we performed high-spatial-resolution dissipated energy measurements on type 316L austenitic stainless steel, and observed the slip bands on the same side of the specimen. The preprocessing of dissipated energy measurement such as motion compensation and a smoothing filter was applied. It was found that the distribution of dissipated energy obtained by improved spatial resolution measurement pinpointed the location of fatigue crack initiation. Owing to the positive correlation between the magnitude of dissipated energy and number of slip bands, it was suggested that the dissipated energy was associated with the behavior of slip bands, with regions of high dissipated energy predicting the location of fatigue crack initiation.

219 Evaluation of Fatigue-limit for Stainless Steel by Measurement of Dissipated Energy

2007 ◽  
Vol 2007 (0) ◽  
pp. 103-104 ◽  
Author(s):  
Yousuke IRIE ◽  
Hirotsugu INOUE ◽  
Kikuo KISHIMOTO ◽  
Hitoshi NAGANUMA ◽  
Yoshiki MURAKAMI
Keyword(s):  
Stainless Steel ◽  
Fatigue Limit ◽  
Dissipated Energy

OS1309 Fatigue limit estimation based on dissipated energy for expanded-magnesium alloy

2013 ◽  
Vol 2013 (0) ◽  
pp. _OS1309-1_-_OS1309-3_
Author(s):  
Daiki SHIOZAWA ◽  
Kenji YAMASHIRO ◽  
Tsuyoshi INAGAWA ◽  
Hideki OKAE ◽  
Takahide SAKAGAMI ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Fatigue Limit ◽  
Dissipated Energy
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