Experimental Verification of Fracture Toughness Requirement for Leak-Before-Break Performance for 155–175 ksi Strength Level Gas CylindersSource: Journal of Pressure Vessel Technology:;1987:;volume( 109 ):;issue: 004::page 435Author:M. D. Rana
DOI: 10.1115/1.3264927Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper deals with a determination of the fracture toughness requirement to obtain leak-before-break performance for a 155–175 ksi strength level high-pressure gas cylinder. Analytical LEFM methods along with Irwin’s K Ic -K c equation related by the parameter βIc were used to predict the fracture toughness requirement for the plane-stress fracture state problem. Experimental work was conducted on flawed cylinders to quantify the fracture toughness requirement for leak-before-break performance. The results indicated that the analytically predicted toughness requirement is 4 to 25 percent higher than that established experimentally. The results also indicated that the minimum specified K Ic (J) value of 85 ksi in. (93.5 MPam) for the gas cylinder is sufficiently higher than the analytically and experimentally established toughness values to provide the desired leak-before-break performance.
keyword(s): Fracture toughness , Gas cylinders , Leak-before-break , Toughness , Stress , High pressure (Physics) , Fracture (Process) , Cylinders AND Equations ,
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| contributor author | M. D. Rana | |
| date accessioned | 2017-05-08T23:25:30Z | |
| date available | 2017-05-08T23:25:30Z | |
| date copyright | November, 1987 | |
| date issued | 1987 | |
| identifier issn | 0094-9930 | |
| identifier other | JPVTAS-28294#435_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/102882 | |
| description abstract | This paper deals with a determination of the fracture toughness requirement to obtain leak-before-break performance for a 155–175 ksi strength level high-pressure gas cylinder. Analytical LEFM methods along with Irwin’s K Ic -K c equation related by the parameter βIc were used to predict the fracture toughness requirement for the plane-stress fracture state problem. Experimental work was conducted on flawed cylinders to quantify the fracture toughness requirement for leak-before-break performance. The results indicated that the analytically predicted toughness requirement is 4 to 25 percent higher than that established experimentally. The results also indicated that the minimum specified K Ic (J) value of 85 ksi in. (93.5 MPam) for the gas cylinder is sufficiently higher than the analytically and experimentally established toughness values to provide the desired leak-before-break performance. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Experimental Verification of Fracture Toughness Requirement for Leak-Before-Break Performance for 155–175 ksi Strength Level Gas Cylinders | |
| type | Journal Paper | |
| journal volume | 109 | |
| journal issue | 4 | |
| journal title | Journal of Pressure Vessel Technology | |
| identifier doi | 10.1115/1.3264927 | |
| journal fristpage | 435 | |
| journal lastpage | 439 | |
| identifier eissn | 1528-8978 | |
| keywords | Fracture toughness | |
| keywords | Gas cylinders | |
| keywords | Leak-before-break | |
| keywords | Toughness | |
| keywords | Stress | |
| keywords | High pressure (Physics) | |
| keywords | Fracture (Process) | |
| keywords | Cylinders AND Equations | |
| tree | Journal of Pressure Vessel Technology:;1987:;volume( 109 ):;issue: 004 | |
| contenttype | Fulltext |