Simulasi Komposit Isopoliester/Serat Kaca untuk Compressed Natural Gas (CNG) Tipe IV dengan Variasi Arah Serat terhadap Tekanan Internal
Submission Date: 2014-08-08 11:45:19
Accepted Date: 2014-09-14 00:00:00
Abstract
Komposit serat kaca/Isopoliester memiliki potensi untuk dibentuk menjadi tangki CNG tipe IV sebagai alternatif bahan yang mudah dibuat dan murah. Studi ini menggunakan simulasi numerik dengan metode elemen hingga untuk mengkaji kemampuan komposit dalam menerima beban tekanan internal. Faktor keamanan yang digunakan adalah 1,5 sehingga nilai tekanan internal yang diaplikasikan sebesar 30 Mpa. Jumlah lapisan laminat dan konfigurasi arah serat dipilih sebagai variabel bebas. Analisa numerik tangki CNG dilakukan dengan menggunakan program MSC Nastran. Distribusi pergeseran pada tangki menunjukkan konfigurasi sudut (0,90) memberikan hasil optimum untuk diaplikasikan. Jumlah lapisan minimum yang dibutuhkan pada komposit adalah 24 lapis laminat sesuai kriteria kegagalan Tsai-Hill. Namun demikian tebal yang cukup besar 15,3 mm menyebabkan, material komposit serat kaca/isopolester tidak disarankan sebagai alternatif bahan pembuatan tangki CNG tipe IV.
Keywords
analisa numerik; komposit laminat; serat kaca; isopolyester; tangki compressed natural gas (CNG ) tipe IV
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