Modeling Adhesive Joints by Cohesive Models Using the Direct Method - Softcover

Carvalho, Ulisses; Campilho, Raul

Softcover

ISBN 10: 6202070781 ISBN 13: 9786202070782

Publisher: LAP LAMBERT Academic Publishing, 2017

Synopsis

The industry´s growing interest in adhesive bonds is based on the increased reliability of the strength prediction methods to adhesive structures. This work aims the validation of tensile and shear cohesive laws, estimated by the application of the direct method, in order to predict the failure of bonded joints under mixed-mode loading. In this context, single and double-lap joints were tested with different overlap lengths and adhesives with distinct ductility. The cohesive laws in pure modes enabled obtaining simplified cohesive laws with triangular, trapezoidal and linear-exponential shapes, which were tested for each one of the adhesives. The validation of the referred cohesive law shapes was accomplished by comparing the numerical predictions with the experimental tests. A peel and shear stress analysis in the adhesive was also performed, in order to understand the influence of stresses on the joints’ strength. The use of the direct method allowed obtaining accurate strength predictions, providing the most adequate cohesive law shape for each set of adhesive/joint geometry.

About this title

About the Author

Ulisses Carvalho graduated in 2014 in mechanical engineering (ISEP) and he completed his M.Sc. in 2016 (ISEP). He is a mechanical designer and project engineer. Raul Campilho graduated in 2003 in mechanical engineering (ISEP). He completed his M.Sc. in 2006 and Ph.D. in 2009 (FEUP). He is a researcher in numerical modeling and bonded joint design.

Edition details

• Publisher: LAP LAMBERT Academic Publishing
• Publication date: 2017
• Language: English
• ISBN 10: 6202070781
• ISBN 13: 9786202070782
• Binding: Paperback
• Number of pages: 244