Sifat Kekuatan Tarik dari Sambungan Tunggal Komposit Anyaman Serat Jute-Polypropylene dengan Metode Resistance Welding

[Title: Single lap-joint Tension strength behavior of woven jute fiber-polypropylene (PP) matrix composites using resistance welding (RW) Method]. This paper examines the tensile strength of resistance welding (RW) joints of jute fibre-based composites polypropylene (PP) matrix (JFRP). The RW method using electric current flowing on nikelin wire carried out. The welding process for nikelin wire is varied, based on the diameter size of 0.3 mm and 0.5 mm. This study aims to investigate the strength of join using the RW method according to variations in diameter of the nikelin wire. Here, 5 times each sample tested repetition based on the ASTM D638 standard. Tensile testing was carried out on a Universal Testing Machine (UTM) with a cross-head speed of 3 mm/min, and a load cell of 5 kN. The experiment result shows that the JFRP in single lap bound with nikelin wire 0,5mm diameter has the highest tensile strength compared to nikelin wire 0.3mm diameter are 213.58 ±0.05 MPa dan 210.34 ±0.05 MPa, respectively. Meanwhile, Young’s Modulus of JFRP single-lap joint by using the nikelin wire 0,3mm diameter has a higher value than 0,5mm diameter of nikelin wire are 8.16 ±0.05 GPa dan 8.44 ±0.05 GPa, respectively. Then, the elongation at break of all JFRP sample have similar values of 4%. The conclusion shows that resistance weld is promising enough to bound the thermoplastic composites. In addition, the nikelin wire diameter is important to factor that influences the mechanical properties of joints.