Effects of biaxial loading on crack driving force and constraints for shallow semi-elliptical surface flaws
Three-dimensional, elastic-plastic finite element analyses have been carried out to investigate the effects of biaxial loading on J-integrals and Q-values for shallow semi-elliptical surface flaws in wide plates. Direct tension and pure bending loading of up to about 10 times the yield strain were a...
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| Veröffentlicht in: | International journal of fracture 1999-01, Vol.98 (1), p.37-54 |
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| container_title | International journal of fracture |
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| creator | LEE, M. M. K BOOTHMAN, D. P LUXMOORE, A. R |
| description | Three-dimensional, elastic-plastic finite element analyses have been carried out to investigate the effects of biaxial loading on J-integrals and Q-values for shallow semi-elliptical surface flaws in wide plates. Direct tension and pure bending loading of up to about 10 times the yield strain were applied to models with linear elastic-power hardening and tripartite material behaviours. Crack depths were limited to 15 percent of the plate thickness. Differences were observed between the effects of biaxiality on J-strain behaviour for cracks in semi-infinite plates and those in finite width plates. The cracked semi-infinite geometry was considered more representative of structural applications. In this case, biaxial loading gave a large increase in J-integrals compared to uniaxial loading, but had negligible effect on constraint, as measured using the Q-value. |
| doi_str_mv | 10.1023/A:1018731604580 |
| format | Article |
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In this case, biaxial loading gave a large increase in J-integrals compared to uniaxial loading, but had negligible effect on constraint, as measured using the Q-value.</description><identifier>ISSN: 0376-9429</identifier><identifier>EISSN: 1573-2673</identifier><identifier>DOI: 10.1023/A:1018731604580</identifier><identifier>CODEN: IJFRAP</identifier><language>eng</language><publisher>Heidelberg: Springer</publisher><subject>Biaxial loads ; Computational techniques ; Cracks ; Elastic limit ; Exact sciences and technology ; Finite element method ; Finite-element and galerkin methods ; Fracture mechanics (crack, fatigue, damage...) ; Fundamental areas of phenomenology (including applications) ; Integrals ; Mathematical methods in physics ; Physics ; Plates ; Plates (structural members) ; Solid mechanics ; Strain ; Structural and continuum mechanics ; Three dimensional analysis</subject><ispartof>International journal of fracture, 1999-01, Vol.98 (1), p.37-54</ispartof><rights>2000 INIST-CNRS</rights><rights>International Journal of Fracture is a copyright of Springer, (1999). 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| ispartof | International journal of fracture, 1999-01, Vol.98 (1), p.37-54 |
| issn | 0376-9429 1573-2673 |
| language | eng |
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| source | SpringerLink Journals (MCLS) |
| subjects | Biaxial loads Computational techniques Cracks Elastic limit Exact sciences and technology Finite element method Finite-element and galerkin methods Fracture mechanics (crack, fatigue, damage...) Fundamental areas of phenomenology (including applications) Integrals Mathematical methods in physics Physics Plates Plates (structural members) Solid mechanics Strain Structural and continuum mechanics Three dimensional analysis |
| title | Effects of biaxial loading on crack driving force and constraints for shallow semi-elliptical surface flaws |
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