CRACK PROPAGATION CHARACTERISTICS OF SINGLE LAP JOINT WITH BLIND RIVET

• Main Author: Harza Irawan, Yusvari
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/46919
• Institution: Institut Teknologi Bandung

Indonesia through PT. Dirgantara Indonesia is trying to contribute in the field of air transportation, especially remote areas in Indonesia. To be able to compete with other pioneering aircraft manufacturers, reliable aircraft products are needed. Structural engineering has two important objectives, namely to increase Fatigue life, and predict the fatigue life of the connection structure. One way to increase fatigue lifetime of a connection is to provide residual Stress. In this study a simulation of the process of tracking is carried out to obtain the residual Stress generated and a crack propagation simulation is carried out to determine the characteristics of crack propagation from the use of blind rivets. Based on the simulation and analysis, the residual stress generated from riveting has an effect on the total stress intensity factor and the age of crack propagation. At the hole diameter (DL) 3.25 mm the resulting residual stress reduces the crack propagation life by 59.94%, while in the configuration of the hole diameter (DL) 3.346 mm results in an increase in crack propagation life by 24.75%.