Abstract
Co‐cured parts usually have their application where large monolithic composite structures are desired. This study evaluated the mechanical response in monotonic tensile test of bidirectional glass fiber reinforced polymer (GFRP) co‐cured joints manufactured by Vacuum Assisted Resin Infusion – VARTM. All joints were designed with the same number of fiber plies and joint length, varying only the joint geometry. Three geometries were studied: single lap joint (SLJ), stepped lap joint (STJ), and a new concept proposed in this study called interspersed lap joint (ILJ), the latter provides higher shear area and interfacial contact area per layer. Tensile test pointed STJ as presenting 77% of the monolithic GFRP tensile strength, the highest ultimate tensile strength among the studied joints. Void content and failure analysis showed high levels of porosity in the joint region for the ILJ, and also a weak bond between the adherents, which may result in a poor mechanical performance. In summary, simple modifications, such as plies disposal prior infusion can benefit the mechanical properties achieved for co‐cured joints.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
