RT - Journal Article
T1 - The study of the effect of bandwidth and loading level parameters of random load histories on the fatigue crack growth in a CT specimen by the central limit theory
JF - mdrsjrns
YR - 2013
JO - mdrsjrns
VO - 13
IS - 6
UR - http://mme.modares.ac.ir/article-15-8951-en.html
SP - 20
EP - 29
K1 - random loading
K1 - bandwidth parameter
K1 - loading level
K1 - fatigue crack growth
K1 - Central Limit Theory
AB - In this paper, the effect of bandwidth and loading level parameters changes of random load histories on the fatigue crack growth is studied by the central limit theory. In this method, the life probabilistic distribution and probability of failure function and reliability function are derived by the central limit theory. The walker equation is used to account the stress ratio effect in the fatigue crack growth rate equations. Then, the theoretical results are verified by the test results in the three random loading conditions with the various bandwidths and loading levels. A good agreement among the theory and test results was observed. The probability of failure and reliability diagrams via number of cycles is presented too.
LA eng
UL http://mme.modares.ac.ir/article-15-8951-en.html
M3
ER -