Abstract
High-purity monocrystalline aluminum disks of three crystallographic orientations were subjected to carefully controlled planar impact producing low levels of spall damage. This damage was observed to consist of voids of essentially octahedral form having {111} planes as faces. To describe the growth of these voids we propose a kinematical model based on the motion of edge dislocations. Dynamical equations describing the rate of growth of an individual void are obtained by applying established concepts of dislocation mechanics to the kinematical model.
This work was supported by the U.S. Atomic Energy Commission.
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Stevens, A.L., Davison, L., Warren, W.E. (1973). Void growth during spall fracture of aluminum monocrystals. In: Sih, G.C. (eds) Proceedings of an international conference on Dynamic Crack Propagation. Springer, Dordrecht. https://doi.org/10.1007/978-94-010-9253-1_2
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DOI: https://doi.org/10.1007/978-94-010-9253-1_2
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