PENGARUH SUDUT DAN JARAK Z-PIN TERHADAP KEKUATAN TEKAN DAN TARIK KOMPOSIT SAN…

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…