Design rules and methods to improve joint strength

• Type: Chapter or Part of a Book
• Date: 2018

Authors

Lucas F. M. da Silva (Author) FEUP; Eduardo A. S. Marques (Author) Other; Raul D. S. G. Campilho (Author) Other

Book

Title: Handbook of Adhesion Technology: Second Edition

Pages: 773-810

ISBN: 9783319554112; 9783319554105

Electronic ISBN: 9783319554112

Publisher: Springer International Publishing

Indexing

Scopus - 9 Citations

Other information

Authenticus ID: P-00P-NYQ

DOI: 10.1007/978-3-319-55411-2_27

Abstract (EN): One of the main reasons for the increasing use of adhesive bonding is the fact that the stress distribution is more uniform than with other conventional methods of joining which enables to reduce weight. However, even in adhesive joints the stress distribution is not perfectly uniform and this leaves room for improvements. The major enemy of adhesive joints is peel or cleavage stresses. These should be reduced if strong joints are to be designed. In this chapter, the main factors influencing the joint strength are first discussed. The focus is on lap joints because these are the most common. Methods are then proposed to improve the joint strength by using fillets, adherend profiling, and other geometric solutions. Hybrid joining is also a possibility to improve the strength of adhesive joints, and adhesives may be used in conjunction with rivet or bolts, for example. Joints may be damaged in some way and it is important to discuss also methods to guarantee an efficient repair design. Finally, configurations are recommended for several types of joints such as butt joints, strap joints, cylindrical joints, and T joints. The main rule for all cases is to spread the load over a large area and reduce the peel stresses. © Springer International Publishing AG, part of Springer Nature 2018. All rights are reserved.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 38