| contributor author | T. S. Srivatsan | |
| contributor author | M. Sambandham | |
| contributor author | A. T. Bharucha-Reid | |
| date accessioned | 2017-05-08T23:23:48Z | |
| date available | 2017-05-08T23:23:48Z | |
| date copyright | July, 1986 | |
| date issued | 1986 | |
| identifier issn | 1048-9002 | |
| identifier other | JVACEK-28970#268_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/101903 | |
| description abstract | This paper reviews the experimental work on the influence of variable amplitude or random loads on the mechanics and micromechanisms of fatigue crack growth. Implications are discussed in terms of the crack driving force, local plasticity, crack closure, crack blunting, and microstructure. Due to heterogeneity in the material’s microstructure, the crack growth rate varies with crack tip position. Using the weakest link theory, an expression for crack growth rate is obtained as the expectation of a random variable. This expression is used to predict the crack growth rates for aluminum alloys, a titanium alloy, and a nickel steel in the midrange region. It is observed using the present theory that the crack growth rate obeys the power law for small ΔK and that the power is a function of a material constant. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | The Effect of Material Heterogeneity and Random Loading on the Mechanics of Fatigue Crack Growth | |
| type | Journal Paper | |
| journal volume | 108 | |
| journal issue | 3 | |
| journal title | Journal of Vibration and Acoustics | |
| identifier doi | 10.1115/1.3269338 | |
| journal fristpage | 268 | |
| journal lastpage | 275 | |
| identifier eissn | 1528-8927 | |
| keywords | Fatigue cracks | |
| keywords | Fracture (Materials) | |
| keywords | Micromechanical devices | |
| keywords | Force | |
| keywords | Plasticity | |
| keywords | Aluminum alloys | |
| keywords | Nickel steel | |
| keywords | Titanium alloys AND Stress | |
| tree | Journal of Vibration and Acoustics:;1986:;volume( 108 ):;issue: 003 | |
| contenttype | Fulltext | |