Theory of spall damage accumulation in ductile metals |
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Authors: | L Davison AL Stevens ME Kipp |
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Institution: | Explosives Physics Division, Sandia Laboratories, Albuquerque, New Mexico 87115, U.S.A. |
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Abstract: | Spall damage is a type of fracture produced when large tensile stresses are developed in material bodies as a result of the interaction of stress waves. The damage develops independently at various points in the body because of the short duration of stress application, but interacts in a complicated way with the stress wave. A theory of these phenomena is presented for the case where the basic response of the material is viscoplastic, and where the damage takes the form of a distribution of small rounded voids. This theory is specialized to the case of rectilinear motion and an example problem solved numerically. |
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