Finite Element Analysis of the Composite Patch Repairs of the Plates
Journal Title: International Journal of engineering Research and Applications - Year 2017, Vol 7, Issue 2
Abstract
Adhesively-bonded patches are used for repair of different types of damages such as holes, notches, scratches, cracks etc. occurring in metallic as well as composite structures. The composite patching is the most widely used method of restoring the load-carrying capacity of the weakened structure. Due to the rapid growth of aerospace industry, analysis of adhesively-bonded patches to repair cracked structures have been the focus for many years. Most of these studies investigated repaired structures using linear analysis and demonstrated the viability of adhesively-bonded patch-repairs as a means to improve the durability and damage tolerance of cracked metallic structures efficiently and economically.Many researchers performed more intensive research on the method and presented the advantages of a composite material patch used for the cracked plate repairing. It was found that the bonded patch method not only reduces the weight but also increases the service life.In this research work, the analysis of cracked metallic and composite plates which are repaired by bonded-composite patches is performed using Finite Element Analysis package FRANC2D/L. This package is available with its corresponding mesh generating program CACSA. They are developed by Cornel Fracture Group, Cornel University.In this study, various fracture parameters for the structures are found out. It revealed that, the application of the bonded composite patches effectively reduces the stress intensity factor (SIF) near the crack tip and hence retards or eliminates the crack propagation. As the chances of fracture are almost reduced, the life of the structures increases by almost double of the initial. The main advantage of this patch repair technology is that, it doesn’t increase the weight of the structure too much.
Authors and Affiliations
Ch. Ramakrishna, J. Krishna Balu, S. Rajashekar, N. Sivateja
Keywords
Related Articles
- EP ID EP390002
- DOI 10.9790/9622- 0702021018.
- Views 145
- Downloads 0
Fabrication of Water Cooler cum Air Conditioner
This project “WATER COOLER CUM AIR CONDITIONER SYSTEM” makes the study of the development of a water cooling system using a normal air conditioner. The main aim behind developing this device is to develop a multifunction...
An Improving Method of Grid Graphical Password Authentication System
Security in the computer is largely supported by passwords for authentication process. Alphanumeric passwords still remain as the most common Authentication method. This conventional authentication method has been shown...
Protection Of Series Capacitor Compensation To Improving Power Capability Of A Transmission Line
— This paper introduces the series capacitor compensation method which considers as a leading technique to improve the power system capability; with the analysis of the location of inserted capacitor, degree of compensat...
Locating Facts Devices in Optimized manner in Power System by Means of Sensitivity Analysis
This paper presents a new method to find the optimal location of facts devices by analyzing sensitivity . The optimal location and capability of Static Var Compensator (SVC) and Thyristor Controlled Series Capacitor (TCS...
Risk Assessment of the Structures Built on Reclaimed Lands in Jabalpur M.P.
This paper describes the risk assessment of the civil engineering structures built on reclaimed lands. The problems that are likely to arise wherever major civil engineering structures are being planned on lands which ha...