THE VIRTUAL CRACK EXTENSION METHOD FOR CREEP FRACTURE
Knowledge of the creep behaviour of materials used in structures which operate for many years is of fundamental importance when assessing the integrity of such structures. The additional consideration of cracks which may occur in metals is also important. For discrete cracks, characterising paramete...
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| Veröffentlicht in: | Fatigue & fracture of engineering materials & structures 1991-01, Vol.14 (6), p.627-636 |
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| container_title | Fatigue & fracture of engineering materials & structures |
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| creator | Hellen, T. K. |
| description | Knowledge of the creep behaviour of materials used in structures which operate for many years is of fundamental importance when assessing the integrity of such structures. The additional consideration of cracks which may occur in metals is also important. For discrete cracks, characterising parameters associated with the creep conditions at the crack tip may be evaluated to determine whether the crack will grow slowly, rapidly, or remain stationary. For arbitrary structures containing such defects, the finite element method is particularly effective for calculating the time‐dependent stress analysis. The particular fracture parameters can then be evaluated using algorithms based on existing technology for contour integration, and a new virtual crack extension technique. These features are described and compared in application to a laboratory compact tension specimen. |
| doi_str_mv | 10.1111/j.1460-2695.1991.tb00692.x |
| format | Article |
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K.</creator><creatorcontrib>Hellen, T. K.</creatorcontrib><description>Knowledge of the creep behaviour of materials used in structures which operate for many years is of fundamental importance when assessing the integrity of such structures. The additional consideration of cracks which may occur in metals is also important. For discrete cracks, characterising parameters associated with the creep conditions at the crack tip may be evaluated to determine whether the crack will grow slowly, rapidly, or remain stationary. For arbitrary structures containing such defects, the finite element method is particularly effective for calculating the time‐dependent stress analysis. The particular fracture parameters can then be evaluated using algorithms based on existing technology for contour integration, and a new virtual crack extension technique. 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K.</creatorcontrib><title>THE VIRTUAL CRACK EXTENSION METHOD FOR CREEP FRACTURE</title><title>Fatigue & fracture of engineering materials & structures</title><description>Knowledge of the creep behaviour of materials used in structures which operate for many years is of fundamental importance when assessing the integrity of such structures. The additional consideration of cracks which may occur in metals is also important. For discrete cracks, characterising parameters associated with the creep conditions at the crack tip may be evaluated to determine whether the crack will grow slowly, rapidly, or remain stationary. For arbitrary structures containing such defects, the finite element method is particularly effective for calculating the time‐dependent stress analysis. The particular fracture parameters can then be evaluated using algorithms based on existing technology for contour integration, and a new virtual crack extension technique. These features are described and compared in application to a laboratory compact tension specimen.</description><subject>Applied sciences</subject><subject>Creep</subject><subject>Exact sciences and technology</subject><subject>finite element method</subject><subject>fracture</subject><subject>Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology</subject><subject>Metals. 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For arbitrary structures containing such defects, the finite element method is particularly effective for calculating the time‐dependent stress analysis. The particular fracture parameters can then be evaluated using algorithms based on existing technology for contour integration, and a new virtual crack extension technique. These features are described and compared in application to a laboratory compact tension specimen.</abstract><cop>Oxford, UK</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1460-2695.1991.tb00692.x</doi><tpages>10</tpages></addata></record> |
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| identifier | ISSN: 8756-758X |
| ispartof | Fatigue & fracture of engineering materials & structures, 1991-01, Vol.14 (6), p.627-636 |
| issn | 8756-758X 1460-2695 |
| language | eng |
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| source | Wiley Online Library - AutoHoldings Journals |
| subjects | Applied sciences Creep Exact sciences and technology finite element method fracture Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology Metals. Metallurgy stress distribution |
| title | THE VIRTUAL CRACK EXTENSION METHOD FOR CREEP FRACTURE |
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