Stress Analysis of the Double-Torsion Specimen |
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| Authors: | G. G. TRANTINA |
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| Affiliation: | Corporate Research and Development Center, General Electric Company, Schenectady, New York 12345 |
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| Abstract: | The double-torsion specimen was analyzed with a 3-dimensional elastic finite-element stress analysis. A crack-front configuration where the stress intensity is constant over ≅ 1/2 of the specimen thickness was determined. That value of the stress intensity is nearly equal to the "strength-of-materials" value. The stress intensity is nearly constant for crack lengths > 0.55 × specimen width ( W ) and ligament lengths > 0.65W. |
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