Abstract:
The material strength of shipbuilders is one of the factors that support the quality of the ships, the better quality of ingredients, more qualified ship created. This research aimed to find out whether influence of composition of variation of strength of materials. This study aims to: (1) to find out there is the influence of variation of laminated fiber on tensile strength and press the fiberglass, (2) to determine the variations in the composition of fibres which are most suitable for use as layers of the hull. This research uses a variation of the 4 specimens, i.e. the specimen 1 (WR-WR-WR-Mat-Mat-Mat), specimen 2 (WR-Mat-WR-WR-Mat-Mat),specimen 3 (WR-Mat-Mat-Mat-WR-WR) and specimen 4 (Mat-WR-WR-WR-Mat-Mat) using survey methods, laboratory testing method (test tensile and bending test), methods of descriptive statistics and test variants in one direction (one way ANOVA). The results of this study indicate that the specimen with the variations in fiber WR-Mat-Mat-Mat-WR-WR (specimen 3) tensile strength value the average voltage is greater (11.94 N/mm2) than any other fiber variation (specimens 1, 2, 4), the variations in fiber WR-WR-WR-Mat-Mat-Mat (specimen 1) tensile strain strength value on average bigger (3,245 N/mm2) than any other fiber variation (specimens 2, 3, 4) and the variations in fiber Mat-WR-WR-WR-Mat-Mat (specimen 4) bending strength has a value of voltage the greater average (32,05 N/mm2) than any other fiber variation (specimens 1, 2,3).
