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>>>