KARAKTERISASI KUAT TARIK DAN KUAT TEKAN TABUNG KOMPOSIT SERAT CARBON ARAMID/EPOXY DENGAN VARIASI PARAMETER CURING DAN POST CURING
Abstract
Frame is a bike component of the most important because it affects the characteristics. One of the main factors that affect the frame is the material making up the frame. Material constituent bicycle frames are usually made of steel, chromoly, aluminum alloy, and titanium. Aramid carbon fiber is a material that is much lighter than other materials. Carbon Aramid has a density of 1.44 g/cm³ while the aluminum alloy used for the application of a bicycle frame has a density of 2.70 g/cm³. Advantages of carbon fiber aramid others are high strength, anti-corrosion and vibration damping. This study makes aramid composite tubes of carbon fiber bicycle frames with the applications for tensile strength and compressive strength with a variety of curing and post curing.
Carbon tube composite manufacture aramid / epoxy using hand lay-up method. Tests done of the tensile test referring to ASTM D 638-4. This study uses six layers of kevlar and carbon fiber parameter variations curing at 100 ° C, 120 ° C, 150 ° C for 60 minutes and post curing at 100 ° C, 120 ° C, 150 ° C for 60 minutes.
The result showed that variations in curing and post curing parameters affect the compressive strength and tensile values. The average value of the compressive strength of the highest curing variation obtained at a temperature of 150 ° C for 558 Mpa. While the average value of the compressive strength of the highest variation obtained post curing at 150 ° C for 598 Mpa. The average value of variations in curing highest tensile strength obtained at a temperature of 150 ° C for 328.13 Mpa, while the average value of the tensile strength variation highest post curing obtained at 150 ° C for 413.88 Mpa.