Fiber Alignment in Directed Carbon Fiber Preforms - Mechanical Property Prediction
- 22 September 2009
- journal article
- research article
- Published by SAGE Publications in Journal of Composite Materials
- Vol. 44 (8), 931-951
- https://doi.org/10.1177/0021998309347769
Abstract
A finite element method is presented for predicting the mechanical performance of discontinuous fiber mesostructures typically produced by directed carbon fiber preforming. High-filament count bundles are modeled using beam elements to enable large representative volume elements to be studied. The beams are attached to a regular grid of 2D continuum elements, which represent the matrix material, using an embedded element technique. The model is validated by comparing simulations with experimental data for random and aligned fiber architectures produced with different tow sizes (6 and 24 K) and fiber lengths (28, 58, and 115 mm). Stiffness and strength predictions are generally within 10% for 6 K preforms, but this error increases up to 40% with increasing tow size because of the assumption that the fiber bundles are circular in cross-section.Keywords
This publication has 26 references indexed in Scilit:
- Fiber Alignment in Directed Carbon Fiber Preforms — A Feasibility StudyJournal of Composite Materials, 2008
- Low-cost carbon-fibre-based automotive body panel systems: A performance and manufacturing cost comparisonProceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2008
- Material Behavior of Structural Reaction Injection Molded Composites under Thermomechanical LoadingJournal of Composite Materials, 2001
- Notch sensitivity and damage mechanisms of glass mat reinforced polypropylenePolymer Composites, 1997
- Effects of fiber length and fiber orientation distributions on the tensile strength of short-fiber-reinforced polymersComposites Science and Technology, 1996
- Development of Strength Theories for Random Fiber CompositesJournal of Composites Technology and Research, 1994
- A probabilistic theory of the strength of short-fibre composites with variable fibre length and orientationJournal of Materials Science, 1982
- On Approximations for Strength of Random Fiber CompositesJournal of Composite Materials, 1975
- Effective Stiffness of Randomly Oriented Fibre CompositesJournal of Composite Materials, 1972
- Tensile properties of fibre-reinforced metals: Copper/tungsten and copper/molybdenumJournal of the Mechanics and Physics of Solids, 1965