Figure 6. Typical images of (a1) original sample (normal optical image); (a2) original sample (photoelasticity); (b1) typical brittle fracture sample (placed together with a small gap between two fracture parts) (normal optical image); (b2) typical brittle fracture sample (placed together with a small gap between two fracture parts) (photoelasticity); (c) after 150% stretching at 160 °C (photoelasticity, three pieces); (d1) typical ductile fracture samples (normal optical image); and (d2) typical ductile fracture samples (photoelasticity).
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Dislocation like features |
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