The Brittle Versus the Ductile Nature of Fracture Modes I and II |
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Authors: | Richard M Christensen |
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Affiliation: | 1. Lawrence Livermore National Laboratory, P.O. Box 808, Livermore, CA, 94550
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Abstract: | Failure surface orientations are determined for states of uniaxail tensile stress and shiar stree appropriate to fracture Modes I and II. The method uses a newly developed failure criterion along with the associated flow rule. The failure angles show a sharp demarcation between ductile and brittle material types. Only the brittle materials class show consistency and likely represents a shear localization effect rether than explicit fracture. |
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