Sandwich construction becomes an option on structures that have high stiffness with lighter weight. The principle of sandwich structure is to combine composite skin with a high elastic modulus with a lightweight composite core to obtain a rigid combination, strong but lightweight materials. However, the core made of polyurethane foam has a compressive strength and modulus close to zero in the d…
Pemakaian material ramah lingkungan yang mampu didaur ulang serta mampu dihancurkan sendiri oleh alam merupakan tuntutan teknologi saat ini. Kebutuhan komposit sandwich dapat memenuhi karakteristik suatu material dengan polyurethane yang diaplikasikan sebagai pengganti karet, besi, kayu dan plastik. Penelitian ini bertujuan untuk menghasilkan foam yang baik dari sifat fisis dan mekanik dengan …
Artikel History Received Accepted Available online At this time, the period in which technology is being developed has resulted in so many new materials that have been discovered and then converted into new materials or materials that are more useful, so the palm fiber deserves to be the object…
Di Indonesia pada umumnya sebagian besar perahu dibuat dari bahan kayu. Semakin mahalnya dan terbatasnya kayu membuat perahu berbahan non-kayu terus dikembangkan untuk menggantikan perahu kayu dengan mendapatkan performa daya apung, kemampuan muat beban berat dan gaya belok atau manuver yang lebih baik. Untuk mendapatkan performa itu maka dilakukan pembuatan perahu nelayan dengan komposit …
Composite is one kind of material created by the merger of two or more kinds of materials that have different properties into one new material with different properties, one of which is the incorporation of resin with fiber. The purpose of this study was to determine the effect of fraction of the composite fiber tensile strength and moisture absorption. The main ingredient of this research is …