The Growth of Surface Microcracks in FatigueSource: Journal of Fluids Engineering:;1969:;volume( 091 ):;issue: 004::page 770Author:P. H. Francis
DOI: 10.1115/1.3571220Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An analytical theory is proposed for describing the growth of a small surface “microcrack” under uniaxial fatigue loading. The theory is based upon dimensional analysis and uses the stress-intensity factor and crack extension force concepts of elastic fracture mechanics. Experimental measurements were made of the growth of surface micro-cracks, ranging from 0.0005–0.040 in. long, in polished specimens of 4340 steel. Good correlation was achieved in comparing the test results with the theoretical predictions. Finally, an approach is indicated for extending the analytical model to the prediction of fatigue failure.
keyword(s): Fatigue , Microcracks , Fatigue failure , Force , Fracture mechanics , Steel , Measurement , Dimensional analysis , Stress , Polishing AND Fracture (Materials) ,
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| contributor author | P. H. Francis | |
| date accessioned | 2017-05-09T00:20:24Z | |
| date available | 2017-05-09T00:20:24Z | |
| date copyright | December, 1969 | |
| date issued | 1969 | |
| identifier issn | 0098-2202 | |
| identifier other | JFEGA4-27348#770_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/133979 | |
| description abstract | An analytical theory is proposed for describing the growth of a small surface “microcrack” under uniaxial fatigue loading. The theory is based upon dimensional analysis and uses the stress-intensity factor and crack extension force concepts of elastic fracture mechanics. Experimental measurements were made of the growth of surface micro-cracks, ranging from 0.0005–0.040 in. long, in polished specimens of 4340 steel. Good correlation was achieved in comparing the test results with the theoretical predictions. Finally, an approach is indicated for extending the analytical model to the prediction of fatigue failure. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | The Growth of Surface Microcracks in Fatigue | |
| type | Journal Paper | |
| journal volume | 91 | |
| journal issue | 4 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.3571220 | |
| journal fristpage | 770 | |
| journal lastpage | 779 | |
| identifier eissn | 1528-901X | |
| keywords | Fatigue | |
| keywords | Microcracks | |
| keywords | Fatigue failure | |
| keywords | Force | |
| keywords | Fracture mechanics | |
| keywords | Steel | |
| keywords | Measurement | |
| keywords | Dimensional analysis | |
| keywords | Stress | |
| keywords | Polishing AND Fracture (Materials) | |
| tree | Journal of Fluids Engineering:;1969:;volume( 091 ):;issue: 004 | |
| contenttype | Fulltext |