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. Author manuscript; available in PMC: 2022 Nov 1.
Published in final edited form as: Compos Struct. 2021 Jul 27;275:114402. doi: 10.1016/j.compstruct.2021.114402

Fig. 2.

Fig. 2.

Specimen preparation and hole area determination for four-point bending fatigue tests for (a) modulus measurement with DIC systems, (b) local modulus distribution, and (c) circular hole setup. The strain evolutions of two opposing surfaces are measured under pre-tension (till ~100MPa).