Load history dependence of estimation accuracy of fatigue limit by plastic strain energy

2019 ◽  
Vol 2019 (0) ◽  
pp. J40128
Author(s):  
Keisuke HAYABUSA
1994 ◽  
Vol 30 (12) ◽  
pp. 1497-1502 ◽  
Author(s):  
N.Eswara Prasad ◽  
A.G. Paradkar ◽  
G. Malakondaiah ◽  
V.V. Kutumbarao

2018 ◽  
Vol 31 (3) ◽  
pp. 322-331 ◽  
Author(s):  
M. M. He ◽  
N. Li ◽  
B. Q. Huang ◽  
C. H. Zhu ◽  
Y. S. Chen

2006 ◽  
Vol 31 (7) ◽  
pp. 879 ◽  
Author(s):  
Yung-Chuan Chen ◽  
Jao-Hwa Kuang ◽  
Li-Wen Chen ◽  
Hua-Chun Chuang

2012 ◽  
Vol 166-169 ◽  
pp. 1083-1086
Author(s):  
Shi Yue Wang ◽  
Jie Hou ◽  
Bi Huang

The flexural strength of steel fiber reinforced prestressed concrete slab (SFRPCS) with different steel fiber volume ratio (0%, 1%, 2%) is obtained according to four-point bend test, which reveals that the addition of steel fiber can retard the crack growth and enhance the flexural strength of SFRPCS. With the results of fatigue experiment, the damage forms of SFRPCS is analyzed, strain amplitude-cycle ratio curves are obtained and the plastic strain energy of SFRPCS with different steel fiber volume ratio during fatigue process is calculated. It is shown that after 80% fatigue life, the more of the steel fiber volume ratio, the less of the strain amplitude increment, which proves the addition of steel fiber can prevent the concrete matrix from cracking and improve the fatigue performance of SFRPCS, and the plastic strain energy curve of SFRPCS shows obviously three- stage development.


2016 ◽  
Vol 250 ◽  
pp. 94-99
Author(s):  
Bogdan Ligaj

The aim of this paper is to present a method to be used for analysis of stress-strain loops under variable amplitude loading. The method for determination of plastic strain energy parameter ΔWpl consists in determination of envelopes around stress-strain branches (increasing and decreasing) formed in effect of application of a loading program. The method involves development of envelopes to determine energy parameter from the highest (for the highest loading cycle) to the lowest (for the lowest cycle). The paper includes results of stress-strain loop for steel C45.


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