Showing papers by "Marc A. Meyers published in 1983"
TL;DR: In this article, the fundamental mechanical aspects of dynamic fracture in metals are presented, with emphasis on spalling produced by the interactions of shock and reflected tensile waves, and the major research efforts conducted in this area are reviewed; the process has been successfully described as a sequence of nucleation, growth, and coalescence of voids or cracks.
315 citations
TL;DR: Work softening was eliminated by an appropriate anneal that stabilized the substructure without significantly affecting the yield stress as mentioned in this paper, which revealed that the shock-induced substructure was replaced by elongated cells with well-defined walls having a high dislocation density.
20 citations
TL;DR: In this paper, the effect of polycrystallinity on the shock wave response of Fe-34.5wt.%Ni and Fe-15wt.%.Ni alloys was studied by subjecting monocrystalline and poly-crystalline cylinders to a normal shock pulse having a peak pressure of 7.5 GPa, a pulse duration of 1.2 μs and an average rarefaction rate of 100 GPa μs −1.
9 citations
01 Jan 1983
TL;DR: In this article, various attempts have been made to incorporate these parameters into a single equation that would have the capability of predicting the response of a specific metal under a wide range of circumstances.
Abstract: It is a well-known fact that the mechanical response of metals depends upon the temperature, the velocity of deformation, the previous deformation undergone, and the stress state, among other parameters. As a result, various attempts have been made to incorporate these parameters into a single equation that would have the capability of predicting the response of a specific metal under a wide range of circumstances.
8 citations
01 Jan 1983
TL;DR: In this paper, the authors consider the process of deformation as a sequence of steps in which the body can be considered in static equilibrium and apply the methods of mechanics of materials to determine the internally-resisting stresses (by the method of sections).
Abstract: The application of an external force to a body is, by definition a dynamic process. However, when the rate of change of the applied forces is low, one can consider the process of deformation as a sequence of steps in which the body can be considered in static equilibrium. Figure 2.1 shows how the distance between the atoms changes upon the application of an external force F. For each of the stages of deformation shown in Figs. 2.1(b) and 2.1(c), the body can be considered under static equilibrium and one can apply the methods of mechanics of materials to determine the internally-resisting stresses (by the method of sections). Hence, a section made at AA or BB will yield identical stresses.
4 citations
TL;DR: A rebuttal to a discussion (Kurzydlowski and Varin 1983) on a paper by Meyers and Ashporth (1982) is presented in this article.
Abstract: A rebuttal to a discussion (Kurzydlowski and Varin 1983) on a paper by Meyers and Ashporth (1982) is presented.