Abstract :
The development of technology in the manufacturing industry, especially
in the production of unmanned aerial vehicles, has resulted in significant
progress. Composites are formed from a combination of two or more materials
with different mechanical properties. The matrix acts as a binding material, while
the reinforcement acts as a strengthening material. Powder is generally used as
reinforcement in composites.
This study aims to test the bending strength of teak sawdust composites
with a volume fraction of 10% corncob powder - 20% teak wood powder - 70%
epoxy resin and hardener, 10% corn cob powder - 30% teak wood powder - 60%
resin epoxy and hardener, 10% corncob powder ? 40% teak sawdust - 50% epoxy
resin and hardener. The standard used in the test is ASTM D 790-99 for bending
strength.
The results showed that the highest bending strength in the volume
fraction of 10% corn cob powder and 20% teak wood powder was 34.414 N/mm2
while the lowest bending strength in the volume fraction of 10% corn cob powder
and 40% teak wood powder was 16.133 N/mm2. The higher the volume fraction of
teak sawdust, the bending strength of the composite will tend to decrease.