?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+FRAKSI+VOLUME+SERAT+TERHADAP+KETANGGUHAN+IMPACT+KOMPOSIT+BERPENGUAT+SERAT+KULIT+BATANG+WARU+(HIBISCUS+TILIACEUS)+%E2%80%93+RESIN+EPOXY+&rft.creator=+WAHYU+EKA+SAPUTRA%2C++1015021056&rft.subject=Teknik+mesin+dan+mesin&rft.description=ABSTRAK%0D%0A%0D%0APemanfaatan+material+komposit+dewasa+ini+semakin+berkembang%2C+seiring+dengan+meningkatnya+penggunaan+bahan+tersebut+yang+semakin+meluas.+Serat+kulit+batang+waru+adalah+salah+satu+jenis+serat+yang+berasal+dari+tumbuhan+dan+tergolong+dalam+serat+alam+yang+berpotensi+sebagai+penguat+material+komposit.+Penelitian+ini+bertujuan+untuk+mengetahui+pengaruh+fraksi+volume+serat+kulit+waru+resin+epoxy+terhadap+ketangguhan+impact%2C+dan+mengamati+kegagalan+pada+komposit+melalui+foto+SEM+(Scanning+Electron+Microscopy).%0D%0AKomposit+yang+dibuat+menggunakan+penguat+serat+waru+dengan+matrik+berupa+resin+epoxy+dan+hardener+dengan+perbandingan+1%3A1.+Serat+direndam+dengan+larutan+alkali+5%25+NaOH+selama+2+jam%2C+kemudian+serat+dibilas+menggunakan+aquades.+Panjang+serat+3+cm+sedangkan+fraksi+volume+serat+5%25%2C+10%25+dan+15%25.+Komposit+dibuat+dengan+metode+press+hand+lay-up+dengan+standar+ASTM+D+6110-04.+Selanjutnya+spesimen+komposit+dilakukan+pengujian+impact.+%0D%0AKetangguhan+impact+meningkat+seiring+meningkatnya+fraksi+volume.+Dari+hasil+penelitian%2C+diperoleh+nilai+ketangguhan+impact+terbaik+sebesar+0%2C1235+J%2Fcm2+pada+fraksi+volume+serat+15%25.+Nilai+ketangguhan+impact+terendah+sebesar+0%2C0292+J%2Fcm2+pada+fraksi+volume+serat+5%25.+Selanjutnya+dilakukan+analisa+melalui+foto+SEM%2C+pada+daerah+patahan+didominasi+kegagalan+berupa+void+yang+menyebabkan+celah+untuk+patah+lebih+cepat.+Fiber+pullout+diakibatkan+oleh+ikatan+antara+serat+kulit+waru+dan+matrik+epoxy+yang+kurang+baik.%0D%0A%0D%0AKata+kunci+%3A+Komposit%2C+Serat+Kulit+Batang+Waru%2C+Epoxy%2C+Impact%2C+SEM+(Scanning+Electron+Microscopy).%0D%0A%0D%0A+%0D%0A%0D%0A%0D%0A%0D%0AABSTRACT%0D%0A%0D%0A%09The+utilization+of+composite+materials+recently+developing%2C+along+with+the+implementation+of+this+materials+spread+sporadically.+Hibiscus+leather+fiber+is+one+type+of+fiber+originated+from+plants+and+the+natural+fibers+that+have+the+potential+as+a+reinforcement+of+composite+materials.+This+study+aims+to+determine+the+effect+of+fiber+volume+fraction+of+hibiscus+leather+impact+on+toughness+of+epoxy+resins%2C+and+observing+the+failure+of+the+composite+through+SEM+(Scanning+Electron+Microscopy).%0D%0A%09Composites+are+made+using+hibiscus+fiber+reinforcement+with+a+matrix+such+as+epoxy+resin+and+hardener+in+the+ratio+1%3A+1.+Fibers+soaked+with+5%25+NaOH+alkaline+solution+for+2+hours%2C+then+the+fiber+is+rinsed+using+distilled+water.+The+length+of+fiber+is+3+cm+while+the+fiber+volume+fraction+use+5%25%2C+10%25+and+15%25.+Composites+made+by+the+method+of+press+Hand+Lay-Up+with+standard+ASTM+D+6110-04.+Further+testing+of+composite+specimens+is+impact+testing.%0D%0A%09Impact+toughness+increases+as+increasing+volume+fraction+is+bigger.+From+the+research+results%2C+obtained+the+best+impact+toughness+value+of+0.1235+J+%2F+cm2+at+15%25+fiber+volume+fraction.+Lowest+impact+toughness+value+of+0.0292+J+%2F+cm2+at+5%25+fiber+volume+fraction.+Further+analysis+through+SEM%2C+on+the+fatigue+area+failures+dominated+the+form+of+voids+that+cause+the+gap+to+break+faster.+Fiber+pullout+caused+by+bonding+between+the+fibers+and+the+matrix+epoxy+hibiscus+fiber+unfavorable.%0D%0A%0D%0AKeywords%3A+Composites%2C+Fiber+Leather+Waru%2C+Epoxy%2C+Impact%2C+SEM+(Scanning+Electron+Microscopy).%0D%0A%0D%0A&rft.publisher=FAKULTAS+TEKNIK&rft.date=2016-07-29&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F23640%2F1%2FABSTRAK%2520%2528ABSTRACT%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F23640%2F3%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F23640%2F2%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=+++WAHYU+EKA+SAPUTRA%2C+1015021056++(2016)+PENGARUH+FRAKSI+VOLUME+SERAT+TERHADAP+KETANGGUHAN+IMPACT+KOMPOSIT+BERPENGUAT+SERAT+KULIT+BATANG+WARU+(HIBISCUS+TILIACEUS)+%E2%80%93+RESIN+EPOXY.++FAKULTAS+TEKNIK%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F23640%2F