EXPERIMENTAL CHARACTERIZATION AND NUMERICAL SIMULATION OF AN ADHESIVELY JOINED DOUBLE-HAT COMPOSITE CRASH BOX SUBJECTED TO IMPACT LOAD

• Main Author: Ghani Irhamsyah, Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/84816
• Institution: Institut Teknologi Bandung

This study introduces a simulation model grounded in experimental data, aiming to closely align the simulation results with experimental outcomes. The focus is on crash boxes, which have been extensively developed to reduce crash impact risks in automotive safety by emphasizing lightweight components with high energy absorption. The primary outputs of interest are energy absorption and crashworthiness. Experimentally, the crash box achieved specific energy absorption (SEA) values between 7.15-8.52 kJ/kg and crash force efficiency (CFE) ranging from 0.5-0.75. To advance this development, simulations were performed to create models that replicate experimental findings, offering an efficient trial-and-error method for further research. The simulation process involved optimization using the Taguchi method and ANOVA, with parameters such as ply longitudinal and transversal strength, Modulus longitudinal and transversal, cohesive zone element, and fracture toughness. The simulation results closely matched the experimental data, with a CFE of 0.56 and SEA of 7.17 kJ/kg. Future research can focus on modifying these parameters to achieve even better results, ultimately aiming to develop safer and more cost-effective crash boxes.