The addition of nanosilica (NS) particles as secondary reinforcement in the matrix of carbon/epoxy composites is known to improve certain matrix-dominated properties. The current investigation characterizes and models the effects of carbon fiber, NS, and void contents on the full set of lamina-level properties of filament wound compound sites. The properties of interest include the orthotropic elastic properties, strengths, and coefficients of thermal expansion. Multiscale modeling of the lamina properties is validated by comparing predicted and measured properties of multidirectionally reinforced filament wound carbon/epoxy tubes with and without NS. A parametric study is conducted to illustrate the effects of variable fiber and NS contents on the lamina-level thermoelastic and strength properties of filament wound carbon/epoxy composites. Inclusion of NS in the matrix is shown to significantly increase the longitudinal and transverse compressive strengths of the carbon/epoxy material.
All Science Journal Classification (ASJC) codes
- Ceramics and Composites
- Mechanics of Materials
- Polymers and Plastics
- Metals and Alloys