ANALISA PENGARUH RASIO KOMPOSISI INTI TERHADAP HASIL UJI BENDING DAN JENIS KERUSAKAN PADA KOMPOSIT SANDWICH PANEL POLYURETHANE BERPENGUAT SERAT KARBON

ANALYSIS OF THE EFFECT OF CORE COMPOSITION RATIO ON BENDING TESTING RESULTS AND DAMAGE TYPES IN CARBON FIBER-REINFORCED POLYURETHANE SANDWICH PANEL COMPOSITES