Elastic-Plastic Fracture Toughness: A Comparison of J-Integral and Crack Opening Displacement CharacterizationsSource: Journal of Pressure Vessel Technology:;1975:;volume( 097 ):;issue: 004::page 278Author:C. A. Griffis
DOI: 10.1115/1.3454308Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The geometry dependence of the J-integral and crack opening displacement at fracture initiation, Ji and (COD)i , is examined for HY-80 steel using precracked bend specimens having thicknesses ranging from 1.6 to 53mm. The amount of crack growth at selected points on the load-deflection diagram was delineated using an unload-heat tint procedure. Resistance curves of J and COD versus crack extension were constructed to determine critical values of these parameters at incipient crack movement. Results are interpreted in terms of previously proposed minimum size requirements for valid Ji measurement. The adequacy of the Rice-Srawley J-integral formula for the bend specimen and the utility of J and COD values at maximum load are also considered.
keyword(s): Fracture (Materials) , Displacement , Fracture toughness , Stress , Geometry , Formulas , Fracture (Process) , Deflection , Heat , Steel AND Electrical resistance ,
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| contributor author | C. A. Griffis | |
| date accessioned | 2017-05-08T22:59:35Z | |
| date available | 2017-05-08T22:59:35Z | |
| date copyright | November, 1975 | |
| date issued | 1975 | |
| identifier issn | 0094-9930 | |
| identifier other | JPVTAS-28122#278_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/87992 | |
| description abstract | The geometry dependence of the J-integral and crack opening displacement at fracture initiation, Ji and (COD)i , is examined for HY-80 steel using precracked bend specimens having thicknesses ranging from 1.6 to 53mm. The amount of crack growth at selected points on the load-deflection diagram was delineated using an unload-heat tint procedure. Resistance curves of J and COD versus crack extension were constructed to determine critical values of these parameters at incipient crack movement. Results are interpreted in terms of previously proposed minimum size requirements for valid Ji measurement. The adequacy of the Rice-Srawley J-integral formula for the bend specimen and the utility of J and COD values at maximum load are also considered. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Elastic-Plastic Fracture Toughness: A Comparison of J-Integral and Crack Opening Displacement Characterizations | |
| type | Journal Paper | |
| journal volume | 97 | |
| journal issue | 4 | |
| journal title | Journal of Pressure Vessel Technology | |
| identifier doi | 10.1115/1.3454308 | |
| journal fristpage | 278 | |
| journal lastpage | 283 | |
| identifier eissn | 1528-8978 | |
| keywords | Fracture (Materials) | |
| keywords | Displacement | |
| keywords | Fracture toughness | |
| keywords | Stress | |
| keywords | Geometry | |
| keywords | Formulas | |
| keywords | Fracture (Process) | |
| keywords | Deflection | |
| keywords | Heat | |
| keywords | Steel AND Electrical resistance | |
| tree | Journal of Pressure Vessel Technology:;1975:;volume( 097 ):;issue: 004 | |
| contenttype | Fulltext |