Crack Closure and Propagation Studies to Determine the Effects of Simple Load InteractionSource: Journal of Engineering Materials and Technology:;1992:;volume( 114 ):;issue: 003::page 229Author:Satish Chand
DOI: 10.1115/1.2904166Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Crack closure and fatigue crack growth experiments were performed on centrally notched specimens of 6063-T6 Al-alloy under single overload and block loading conditions. Using crack closure data, values of effective stress range ratio (U) were found. Assuming that the crack closure phenomenon is responsible for transient behavior of fatigue crack growth rate (FCGR), the FCGR behavior during load interaction was predicted using a constant amplitude crack propagation description in conjunction with the experimentally measured U-values. On comparing predicted FCGR with those found experimentally, it was observed that the predicted FCGR always agrees with the trend of experimental FCGR behavior and provides either exact or conservative estimates of the FCGR.
keyword(s): Stress , Fracture (Materials) , Fatigue cracks , Aluminum alloys AND Crack propagation ,
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| contributor author | Satish Chand | |
| date accessioned | 2017-05-08T23:38:33Z | |
| date available | 2017-05-08T23:38:33Z | |
| date copyright | July, 1992 | |
| date issued | 1992 | |
| identifier issn | 0094-4289 | |
| identifier other | JEMTA8-26951#229_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/110310 | |
| description abstract | Crack closure and fatigue crack growth experiments were performed on centrally notched specimens of 6063-T6 Al-alloy under single overload and block loading conditions. Using crack closure data, values of effective stress range ratio (U) were found. Assuming that the crack closure phenomenon is responsible for transient behavior of fatigue crack growth rate (FCGR), the FCGR behavior during load interaction was predicted using a constant amplitude crack propagation description in conjunction with the experimentally measured U-values. On comparing predicted FCGR with those found experimentally, it was observed that the predicted FCGR always agrees with the trend of experimental FCGR behavior and provides either exact or conservative estimates of the FCGR. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Crack Closure and Propagation Studies to Determine the Effects of Simple Load Interaction | |
| type | Journal Paper | |
| journal volume | 114 | |
| journal issue | 3 | |
| journal title | Journal of Engineering Materials and Technology | |
| identifier doi | 10.1115/1.2904166 | |
| journal fristpage | 229 | |
| journal lastpage | 236 | |
| identifier eissn | 1528-8889 | |
| keywords | Stress | |
| keywords | Fracture (Materials) | |
| keywords | Fatigue cracks | |
| keywords | Aluminum alloys AND Crack propagation | |
| tree | Journal of Engineering Materials and Technology:;1992:;volume( 114 ):;issue: 003 | |
| contenttype | Fulltext |