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(a) Photo of specimen MB_300_60_B_F_3 before the beginning of the test. Load responses of specimen (b) MB_300_60_B_F_1, (c) MB_300_60_B_F_2, and (d) MB_300_60_B_F_3. (e) Failure of PBO fibers and (f) global slip vs. number of cycles for specimen MB_300_60_B_F_3.
