Figure 13.
Failure modes of the specimens. (a) RM1. (b) RM2. (c) RM3. (d) RM4. (e) RM5. (f) RM6. (g) RM7. (h) RM8. (i) RM9. (j) RM10. (k) RM11. (l) RM12. (m) RM13. (n) RM14. (o) RM15.
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