KELAKUAN DELAMINASI KOMPOSIT LAMINAT HIBRID ANYAMAN GENTIAN MENGKUANG/ GENTIAN ASLI SUTERA/ EPOKSI

Recent advances in research and manufacturing techniques of natural fiber based composites have allowed the manufacturers to use natural fiber based composites in various applications. Natural fiber based composites are fast emerging as viable alternative to traditional materials due to their unique properties. This paper discusses the development of new natural fiber hybrid composites using mengkuang and silk fibre to achieve a unique natural fiber composites. The effects of hybridization between woven mengkuang / natural silk fiber on mode II delamination (GIIC) of laminated composites were investigated by performing the End-Notched Flexure (ENF) test. The composite samples were prepared using hand lay-up method with compression machine. After fabrication, the test specimens were subjected to ENF testing for mode II delamination based on ASTM D790-03 standards. The additional of natural silk fiber in composites fabrication provided an excellent improvement in the rate of critical strain energy release, GIIC. The Scanning Electronic Microscope (SEM) images show the delamination behaviour of the samples after failure is based on the arrangement of mengkuang and silk fibre.