Fig. 4

Three types of experimental specimens: (a) single strand specimen; (b) multi-strand specimen; (c) tensile specimen of X-direction; (d) tensile specimen of Y-direction; (e) tensile specimen of Z-direction.

Three types of experimental specimens: (a) single strand specimen; (b) multi-strand specimen; (c) tensile specimen of X-direction; (d) tensile specimen of Y-direction; (e) tensile specimen of Z-direction.