?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Analisa+Perilaku+Mekanik+Komposit+Serat+Kapuk+Randu+Menggunakan+Matrik+Polyester&rft.creator=Syamsul+Arif+Sarifudin%2C+0615021024&rft.subject=+&rft.description=abstrak+indonesia%0D%0A%0D%0APerkembangan++ilmu+pengetahuan+dan+teknologi+dalam+bidang+rekayasa++material+serta+isu+lingkungan+hidup+menuntut+terobosan+baru+dalam+penyediaan+material+yang+berkualitas+tinggi+dan+ramah+lingkungan.++Material+bukan+logam+khususnya+komposit+berpenguat+serat+alam+yang+bersifat++lebih+ringan%2C+mudah+dibentuk%2C+tahan++korosi%2C+harga+murah+dan+mudah+diperoleh.+Tujuan+penelitian+untuk+mengetahui+sifat+mekanik+komposit+serat+kapuk+randu+menggunakan+resin+polyester+melalui+pengukuran+kekuatan+tarik+dan+bending.%0D%0APada+penelitian+ini+menggunakan+bahan+berupa+Resin+Poliester%2C+serat+Kapuk+Randu+dan+katalis%2C+serta+menggunakan+peralatan+berupa+cetakan%2C+penggaris%2C+kit%2C+cutter%2C+gelas+ukur+dan+lain-lain.+Serat+pada+komposit+disusun+acak+dengan+variasi+fraksi+volume+15%25%2C+25%25%2C+35%25.++Pembuatan++dengan++cara++press++mold%2C++pengujian+bending++yang++dilakukan++dengan++acuan++standar++ASTM++D++790-02%2C+pengujian+tarik+dengan+standart+ASTM+D-638.+Pengujian+melalui+proses+uji+tarik+dan+uji+bending+untuk+mengetahui+sifat+mekanik+komposit.%0D%0ATegangan+tarik+terbesar+diperoleh+pada+komposit+dengan+fraksi+volume+35%25+yaitu+sebesar+3%2C8046+MPa+sedangkan+kekuatan+bending+terbesar+diperoleh+dari+komposit+dengan+fraksi+volume+15%25+sebesar+84+MPa.+Void+yang+terbentuk+menyebabkan+beban+yang+bisa+ditahan+oleh+matrik+menjadi+berkurang+akibat+ketidak+homogenan+spesimen.+Menurunnya+kekuatan+komposit+dapat+disebabkan+karena+distribusi+serat+yang+kurang+merata+disetiap+tempat+sehingga+energi+yang+diserap+menjadi+lebih+kecil+jika+dibanding+pada+sisi+yang+lain.%0D%0A%0D%0AKata-kata+kunci%3A+Komposit%2C+serat+Kapuk%2C+Poliester%2C+kekuatan+mekanik%2C+uji+tarik+dan+uji+bending%0D%0A%0D%0Aabstak+inggris%0D%0A%0D%0ADevelopments+in+science+and+technology+in+the+field+of+materials+engineering+and+environmental+issues+requires+new+breakthroughs+in+the+provision+of+high+quality+materials+and+environmentally+friendly.+Nonmetallic+materials+Composite+especially+natural+fibers+that+are+more+lightweight%2C+malleable%2C+corrosion+resistance%2C+low+price+and+easy+to+obtain.+Research+objective+is+to+determine+the+mechanical+properties+of+the+kapok+fiber+composites+using+polyester+resin+with+tensile+and+bending+strength+measurements.%0D%0AIn+this+study+the+use+of+materials+such+as+polyester+resins%2C+fibers+Kapok+Randu+and+catalysts%2C+as+well+as+using+tools+such+as+mold%2C+ruler%2C+kit%2C+cutter%2C+measuring+cups+and+others.+Randomly+arranged+fibers+in+composites+with+various+volume+fractions+of+15%25%2C+25%25%2C+35%25.+Making+way+press+mold%2C+bending+tests+were+conducted+with+a+reference+standard+ASTM+D+790-02%2C+tensile+testing+with+the+standard+ASTM+D-638.+%0D%0AGreatest+tension+obtained+in+the+composite+with+35%25+volume+fraction+is+equal+to+3%2C8046+MPa+while+the+largest+bending+strength+of+the+composite+obtained+from+volume+fraction++15%25+at+84+MPa.+Void+formed+causing+the+load+can+be+held+by+the+matrix+is+reduced+due+to+lack+of+homogenan+specimens.+The+reduced+strength+of+the+composite+can+be+caused+by+uneven+distribution+of+fibers+in+each+place+so+that+the+energy+absorbed+becomes+smaller+when+compared+to+the+other+side.%0D%0A%0D%0AKey+Words%3A+Composites%2C+Kapok+fibers%2C+polyester%2C+mechanical+strength%2C+tensile+and+bending+tests.+%0D%0A&rft.publisher=Fakultas+Teknik&rft.date=2013-01-16&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F1%2F1%2520Abstrak%2520SAS.docx&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F2%2F2%2520ABSTRACT%2520bahasa%2520inggris.docx&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F3%2F3%2520kover%2520dalam%2520SAS.docx&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F4%2F5%2520MENGESAHKAN%2520Sas.docx&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F5%2F6%2520PERNYATAAN%2520PENULIS%2520SAS.docx&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F6%2F7%2520riwayat%2520hidup%2520sas.docx&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F7%2F8%2520Motto%2520SAS.docx&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F8%2F8A%2520persembahan%2520SAS.docx&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F9%2F9%2520SANWACANA%2520SAS.docx&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F10%2F10%2520DAFTAR%2520ISI.docx&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F11%2F11%2520DAFTAR%2520GAMBAR.docx&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F6805%2F12%2F12%2520DAFTAR%2520TABEL.docx&rft.format=text&rft.identifier=http%3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