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. Author manuscript; available in PMC: 2019 Oct 1.
Published in final edited form as: Biomaterials. 2018 Jun 26;179:29–45. doi: 10.1016/j.biomaterials.2018.06.032

Figure 4.

Figure 4

Dynamic fatigue properties at 5 MPa applied stress. (A) Experimental setup for fatigue testing. Arrow points to water drip used to maintain hydration. (B) Samples were cyclically loaded to a maximum stress of 5 MPa (minimum ~0.3 MPa to maintain contact) at a frequency of 5 Hz. (C–D) Representative hysteresis loops for the first (black) and last (gray) recorded cycle (N= cycle number) for (C) CG/nHA-PEUR and (D) BGCG/nHA-PEUR composites. (E–F) Creep strain experienced by (E) CG/nHA-PEUR and (F) BGCG/nHA-PEUR increased dramatically the first 50,000 cycles but approached a plateau as the tests progressed.