Archive | 2019
PENGARUH VARIASI JUMLAH LAPISAN FIBERGLASS DAN ANYAMAN BAMBU TERHADAP KEKUATAN BENDING KOMPOSIT DENGAN METODE VACUUM ASSISTED RESIN INFUSSION (VARI)
Abstract
Th e objective of this research is to obtain the bending\xa0 properties \xa0of \xa0composite \xa0material\xa0 produced\xa0 by VARI method, and to get analysis of polyester resin distribution time on the layer of fiberglass \xa0composite and bamboo woven strip. T h e process of making composites varies, but the process of making this research is the process of Vacuum Assisted Resin Infusion (VARI). In the VARI process, dry fiber is placed between the fixmold and plactic bag, then the \xa0resin \xa0is injected \xa0after\xa0 the chamber \xa0inside the \xa0low- pressure plastic bag and the process continues until all parts of the fiber are wetted by the resin. F rom the results of research, testing and discussion of bending test results that have been done then can be drawn conclusions include: Variation of the number of reinforcement layer on VARI method will affect the value of bending strength of composite. By using the VARI\xa0 method \xa0The\xa0 highest \xa0average\xa0 value\xa0 of \xa0bending stress \xa0occurs \xa0in \xa0variation \xa04 \xa0(206,69 \xa0MPa), \xa0while\xa0 the lowest occurs in variation 1 (42,83 MPa), and the time required for the distribution of resin varies in time variation 1 which takes 5 minutes 02 seconds, while for variation 4 takes 8 minutes 3 seconds. Keywords : composites, VARI method, glass fiber, bending test