![Figure 3.](/ServeContent?url=http%3A%2F%2Fdbm.sagepub.com%2Fcontent%2F6%2F1758736015576009%2FF3.medium.gif)
Figure 3.
Experimental loading device.
Loading device: the universal testing machine (Instron 5685, Instron).
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Experimental loading device.
Loading device: the universal testing machine (Instron 5685, Instron).