13th International Conference on Fracture June 16–21, 2013, Beijing, China -3- can be confirmed that the µb/γs value can determine the mechanical properties of the simple two-dimensional single-phase materials on the atomic scale. In the following section, we investigate the influence of interfacial mechanical properties on the elongation properties of multilayered composite materials by combining these two virtual materials. Figure 1. Stress–strain curves of virtual materials with ductile (M-D) and brittle (M-B) properties. (b) and (c) show the shear stress distributions of the single-phase models under tensile loading. 3. Mechanical Properties of Multilayered Composites 3.1. Multilayered Composite Models Figure 2 shows the analysis model of the multilayered composite consisting of M-B and M-D. The crystal orientation of M-D is rotated 30 degrees from M-B, and thus, the interface has the misalignment angle. Initial micro-cracks are introduced into each phase, and all initial cracks in M-D change their structures into dislocation dipoles after relaxation. Periodic boundary conditions are adopted in all directions and the tensile deformation in the y-direction occurs at a strain rate of 4 × 108 1/s and 10 K. Figure 2. Schematic of the multilayered composite model.
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