A Weakest-Link Model for the Prediction of Fatigue Crack Growth RateSource: Journal of Engineering Materials and Technology:;1978:;volume( 100 ):;issue: 002::page 170Author:Kong Ping Oh
DOI: 10.1115/1.3443467Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A weakest-link theory is proposed for analyzing the rate of fatigue crack growth. The joint probability density of a fatigue crack growing an amount X between x and x+dx, and in time η between N and N+dN cycles is derived from an initial probability function. The rate of crack growth is then obtained as the expectation of the random variable (X/η). It is shown that the average rate of crack growth obeys the power law for small ΔK, and that the power is a function of the shape parameter in the Weibull distribution.
keyword(s): Fatigue cracks ,
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| contributor author | Kong Ping Oh | |
| date accessioned | 2017-05-08T23:04:54Z | |
| date available | 2017-05-08T23:04:54Z | |
| date copyright | April, 1978 | |
| date issued | 1978 | |
| identifier issn | 0094-4289 | |
| identifier other | JEMTA8-26861#170_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/91094 | |
| description abstract | A weakest-link theory is proposed for analyzing the rate of fatigue crack growth. The joint probability density of a fatigue crack growing an amount X between x and x+dx, and in time η between N and N+dN cycles is derived from an initial probability function. The rate of crack growth is then obtained as the expectation of the random variable (X/η). It is shown that the average rate of crack growth obeys the power law for small ΔK, and that the power is a function of the shape parameter in the Weibull distribution. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | A Weakest-Link Model for the Prediction of Fatigue Crack Growth Rate | |
| type | Journal Paper | |
| journal volume | 100 | |
| journal issue | 2 | |
| journal title | Journal of Engineering Materials and Technology | |
| identifier doi | 10.1115/1.3443467 | |
| journal fristpage | 170 | |
| journal lastpage | 174 | |
| identifier eissn | 1528-8889 | |
| keywords | Fatigue cracks | |
| tree | Journal of Engineering Materials and Technology:;1978:;volume( 100 ):;issue: 002 | |
| contenttype | Fulltext |