13th International Conference on Fracture June 16–21, 2013, Beijing, China -5- Figure 4. Stress distribution in the vicinity of the crack tip Figures 5 shows deformation caused by defects area and figure 6 shows the shape of plastic zone. It can be seen that maximum strain localizes at the crack tip and gradually decreases with the distance from it. The magnitude of deformation, caused by defects is greater than the magnitude of plastic strain. Figure 5. Component pxx of the deformation tensor caused by defects near crack tip Figure 6. Component εp xx of the plastic strain tensor near crack tip Figures 7, 8 present the experimental temperature field on the specimen surface near crack tip and experimental obtained neat power near crack tip, respectively.
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