Journal
COMPUTATIONAL MECHANICS
Volume 57, Issue 3, Pages 405-421Publisher
SPRINGER
DOI: 10.1007/s00466-015-1252-0
Keywords
Hybrid composites; Pseudo-ductility; Analytical modelling; Numerical modelling
Funding
- FCT
- LAETA [UID/EMS/50022/2013]
- Ford Motor Company
- U.S. Department of Energys Office of Energy Efficiency and Renewable Energy (EERE) [DE-EE0006867]
- Air Force Office of Scientific Research [FA9550-14-1-0032]
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Three different models with increased complexity to study the effects of hybridization on the tensile failure of hybrid composites are proposed. The first model is a model for dry bundles of fibres based on the statistics of fibre strength. The second is a model for composite materials based on the multiple fragmentation phenomenon. Lastly, a micromechanical numerical model is developed that considers a random distribution of fibres and takes into account the stochastic nature of fibre strength. This study aims to understand the controlling factors that lead to pseudo-ductility, as well as establish the sequence of failure mechanisms in hybrid composites under tensile loadings.
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