Analysis of Mechanical Properties Sandwich Composite Honeycomb-unidirectional with Matrix Vinyl Ester using VARI Method

The Composite are material consists of two or more materials which combine macroscopically, for now the strength of the material, it must be test with various method which is represented by the specimen. On this paper will research about material sandwich Composite with flexural three-point bending and flatwise compressive test method. In manufactured generally Composite using vary method. Usually manufacturing uses hand lay-up, vacuum bagging, VARI method and other. In this research author will be use VARI method, the reason is VARI method has a low-cost process and more efficient. In this experiment was carried out on sandwich Composite using carbon fiber unidirectional 0⁰ , with aramid honeycomb core. Specimen and testing will be follow ASTM C365 standard which is flatwise testing standard, for specimen with lycal resin the results average is 56089.6 N Maximum load, 26.68 MPa Compressive of strength, 5.04 moduli of elasticity 5.04 MPa, while for specimen with Vinyl Ester resin the results average is 56089.6 MPa Maximum load, 26.68 MPa Compressive of the core strength, 5.04 MPa moduli of elasticity and Flexural three-point banding will be follow ASTM C393 standard which is Flexural testing standard. The Results of the specimen using Vinyl Ester resin is 1029.14 N maximum load, 13.78 MPa Facing stress, 861.94 moduli of elasticity