On the principle of superposition for stress intensity factors |
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| Authors: | B. Aamodt P.G. Bergan |
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| Affiliation: | A.S. Computas, Det norske Veritas, Postboks 167,Økern, Oslo 5, Norway;Division of Structural Mechanics, The Norwegian Institute of Technology, University of Trondheim, 7034 7034 Trondheim-NTHNorway |
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| Abstract: | The principle of superposition as applied for stress intensity factors for different types of loading will be discussed. Using an energy formulation, it will be shown that stress intensity factors for different loading types are additive provided all loading types tend to open the crack. Negative part contributions to the stress intensity factor may also be superimposed if the associated loads tend to close the crack along the entire crack front. |
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