THE EFFECT OF LOW-VELOCITY IMPACT ON THE FLEXURAL STRENGTH OF GLASS/EPOXY COMPOSITE PLATES

• Main Author: XUAN QUANG - NIM: 23616701, PHAM
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/29931
• Institution: Institut Teknologi Bandung

<p align="justify">Glass/Epoxy composite is very common alternatives for skin applications in aircraft, performance car and boat. However, a small impact from dropping tools, a splashed rock or bird strike may cause serious damage and/or degradation to Glass/Epoxy composite components. It is important to develop predictive models and computational tools that would address this problem. The objective of this thesis is to develop a progressive damage model for Glass/Epoxy composite in ABAQUS Explicit to numerically predict impact damage and residual strength of a Glass/Epoxy composite component. To achieve this objective, experimental data on woven Glass/Epoxy composite plate subjected to low-velocity impact and subsequent four-point-bending tests were used. To model a real composite behaviour, Hashin–Rotem criterion was used for laminate damage initiation and traction-separation law was used in cohesive region. Impact damage and four-point-bending of the woven Glass/Epoxy composite plates were simulated in ABAQUS Explicit, and good agreement was found between FEA predictions and test results, which include the impact zone shape and size, as well as the load-deflection response and residual bending strength from the four-point-bending tests.<p align="justify"> <br /> <br /> <br />