Strength of Composite Scarf Joints
نویسنده
چکیده
In recent years, large composite structures have been used increasingly in the aerospace and naval industries. Such a large composite structure is mostly fabricated using the scarf joining technique so that multiple substructures can be connected together. Figure 1 shows three commonly used scarf joint configuration. Among the three, the step/overlap joint is considered as the strongest because it has the largest joint surface area. As a result, this chapter addresses the step/overlap joint. The scarf joint is typically constructed as sketched in Fig. 2. The Vacuum Assisted Resin Transfer Molding (VARTM) technique is frequently used for the joint fabrication process because the technique can be applied to a large size of structure. Furthermore, the scarf joint can be also used for repair of a damaged section.
منابع مشابه
A review on stress distribution, strength and failure of bolted composite joints
In this study, analytical models considering different material and geometry for both single and double-lap bolted joints were reviewed for better understand how to select the proper model for a particular application. The survey indicades that the analytic models selected for the adhesively single or double bolted lap joints, as well as T, scarf, and stepped joints, with linear material pr...
متن کاملA new approach to predict of mechanical properties at the interface of Aluminium/Copper explosive cladding by explosive scarf welding
Abstract: The purpose of this study is to produce scarf joint through explosive welding process (EXW). The scarf weld is a process in which the final bond interface is oblique. With applying the explosive welding technique, this joint can create a metallic bond between similar or dissimilar metals. In this study, chamfered end of aluminum and copper plates were joined explosively and named scar...
متن کاملInteraction of laminate damage and adhesive disbonding in composite scarf joints subjected to combined in-plane loading and impact
Impact tests were carried out on composite laminates and composite scarf repairs, while both were subjected to in-plane loading with tensile pre-strain levels up to 5000 microstrain. The results show that pre-straining of the composite laminates has no noticeable influence on the size of the delamination area for the given impact energy of 8 J, which represents a typical barely-visible impact o...
متن کاملStrength Prediction of Adhesively-bonded Scarf Repairs in Composite Structures under Bending
This work reports on the experimental and numerical study of the bending behaviour of two-dimensional adhesively-bonded scarf repairs of carbon-epoxy laminates, bonded with the ductile adhesive Araldite 2015. Scarf angles varying from 2 to 45o were tested. The experimental work performed was used to validate a numerical Finite Element analysis using ABAQUS and a methodology developed by the aut...
متن کاملThe Effect of Joint Form and Parameter Values on Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber (BLVL)
Bamboo-bundle laminated veneer lumber (BLVL) was produced by joint lengthening technology. The objective of this study was to evaluate the effect of joint form and the values of key parameters on mechanical properties of BLVL. Two joint forms, i.e., finger joint and scarf joint, and two corresponding joint parameters, i.e., finger length and scarf angle, were investigated in laminates. The resu...
متن کامل