4.4 Investigation on Tensile Strength
Tensile strength for the different tested samples was shown in figure. 11. It clearly shows that the sandwiched samples give more strength than the virgin samples and complete composite samples. The maximum strength of the print for PLA is more than the PLA/Al2O3, PLA/Cu, and PLA/CF but less than all the composite sandwiches. The minimum strength of the PLA is greater than all composite specimens. But the average strength of the sandwiched specimens is greater than the PLA and PLA composite specimens. The maximum strength of virgin PLA is lower than the average strength of PLA-Sandwich samples. These strength improvements are observed in sandwich specimens due to the improved bonding between the subsequent infill layers.
<<<Figure.11 Tensile Strength of tested specimens>>>