Volume 13, Issue 10 (1-2014)
Modares Mechanical Engineering 2014, 13(10): 75-83 |
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Mehrabi H. Experimental study of ratcheting influence on fatigue life of Ck45 in uniaxial cyclic loading. Modares Mechanical Engineering 2014; 13 (10) :75-83
URL: http://mme.modares.ac.ir/article-15-5903-en.html
URL: http://mme.modares.ac.ir/article-15-5903-en.html
Abstract: (5964 Views)
In this paper, experimental analysis of ratchetting-fatigue interaction and ratcheting behavior of Ck45 steel were investigated by uniaxial cyclic loading under stress-controled tests. Stress-controled tests performed in two steps in order to evaluate ratchetting strain influence on fatigue life of specimens. First, pre-ratchetting tests were performed with various loading setups and then, their fatigue life were measured in fatigue test with a constant load for all specimens. In uniaxial cyclic loading for stress-control condition, fatigue life of specimens depends greatly on pre-ratchetting stress amplitude and influence of mean stress on fatigue life is limited to a specific mean stress.
Article Type: Research Article |
Subject:
Creep, Fatigue & Failure
Received: 2013/02/16 | Accepted: 2013/03/20 | Published: 2013/12/22
Received: 2013/02/16 | Accepted: 2013/03/20 | Published: 2013/12/22
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