Keynote Speaker
Prof. Raul D.S.G. Campilho

Prof. Raul D.S.G. Campilho

Permanent Auxiliar Professor
School of Engineering
Instituto Superior de Engenharia do Porto (ISEP)
Portugal
Speech Title: Numerical analysis of adhesively-bonded joints in composite materials

Abstract: Advanced composite materials have high specific strength and stiffness and, together with automatic fabrication processes, enable the production of cost- and weight-efficient composite structures. Within this scope, adjusting the composite lay-up to the load-preferential directions is particularly effective in reaching efficient solutions. In several applications, such as aerospace, aeronautical and automotive industries, the structures’ complexity requires joining separately-produced components to form the final structure. Adhesive joining of composite structures is particularly attractive, enabling to prevent weakening induced by holes, the combination of composites with different materials, lighter joints, and new designs. The Finite Element Method (FEM) is the most common technique for adhesive joints, using different approaches: continuum mechanics, fracture mechanics, Cohesive Zone Modelling (CZM), damage mechanics, and the eXtended Finite Element Method (XFEM). This work addresses the CZM numerical technique for strength prediction of adhesive joints, including a general description of CZM applied to the strength prediction of bonded joints. The most common techniques for estimation of the cohesive laws, essential as input in the numerical simulations, are then addressed. The application of CZM techniques to adhesively-bonded composite joints is divided into fracture property estimation, static strength prediction for general purpose joints, curved joints, sandwich structures with composite skins and impact applications.


Biography: Raul Duarte Salgueiral Gomes Campilho completed his M.Sc. degree in 2006 and his Ph.D. degree in 2009, both of which at Faculdade de Engenharia da Universidade do Porto. He has authored 280 articles in journals, 27 sections of books and 9 books, and received about 9,164 citations with 51 h-index (Google Scholar). He has received 16 awards and/or honors. Raul D.S.G. Campilho spends much of his time researching Composite material, Adhesive, Structural engineering, Finite element method and Fracture mechanics. His Composite material study is mostly concerned with Fracture toughness, Adhesive bonding and Failure mode and effects analysis.