Abstract
1. As the process of microfailure of a structure begins, the mechanism of microinhomogeneous deformation changes, which can be seen as a redistribution of the high and low deformation sites [15]. In this context, the proposed model of a polycrystalline material represents the basic process by which the linear nature of the stress dependency and elastic strain on the length of the rods is only observed in the initial stages of failure. When the system is further stressed, as a result of redistribution of the load from failed rods, the linear dependency no longer holds. 2. The quantitative results obtained concerning the effect of initial inhomogeneity on the failure load show that loss of strength in crystalline material is not only a result of the movement of dislocations, but also as a result of the fact that deformation and failure occurs in an inhomogeneous manner. And the higher the initial level of inhomogeneity, the earlier the load curve will deviate from linearity.
Published Version
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