NANO-REINFORCED COMPOSITE INTERFACES: OPPERTUNITIES AND CHALLENGES | ||||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||||
| Article 142, Volume 13, 13th International Conference on Applied Mechanics and Mechanical Engineering., May 2008, Page 38-48 PDF (666.92 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/amme.2008.39822 | ||||
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| Author | ||||
| MEGUID S. A. | ||||
| Engineering Mechanics and Design Laboratory, Department of Mechanical and Industrial Engineering, University of Toronto, 5 King’s College Road, Toronto, Ontario M5S 3 G8, CANADA. | ||||
| Abstract | ||||
| ABSTRACT In the present paper, the delamination behaviour of nano-reinforced composite double cantilever beam is numerically studied. Specifically, it evaluates the influence of nanofillers on the reinforcement of adhesively bonded layer under mode-I fracture toughness using multiscale modelling. In this novel approach, we couple coarse-grain molecular dynamics with continuum mechanics. The molecular dynamics domain and the finite element domain are overlapped in a handshaking subdomain, The implementation of coarse-grain molecular dynamics radically reduces the size of the problem. An explicit algorithm coupling the two methodologies was developed and used to determine the energy release rates of cohesive cracks in adhesively bonded composite joints with varying amount of nano-reinforcement in the adhesive layer. Both the quality of the prediction of the multiscale model and the influence of the nanofillers are evaluated and discussed. | ||||
| Keywords | ||||
| Nano-Reinforced Adhesive Layers; carbon nanotubes; Alumina Nanopowder; v Multiscale Materials Modelling; Coarse-Grain Molecular Dynamics; Finite Element; Fracture Behaviour; Energy Release Rate | ||||
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