%0 Journal Article %T Lightweight alternatives to glass fiber/epoxy sheet molding compound composites: A feasibility study %A Amir Asadi %A Ferdinand Baaij %A Kyriaki Kalaitzidou %A Robert J Moon %A Tequila AL Harris %J Journal of Composite Materials %@ 1530-793X %D 2019 %R 10.1177/0021998318817814 %X The focus of this study is to (i) understand the effect of the fiber type and content on the mechanical properties of sheet-molding compounds composites and (ii) investigate possible lightweight alternatives to glass fibers-sheet molding compound composites. Glass fiber and basalt fibers are used to make sheet-molding compound composites and the mechanical performance are determined as a function of the fiber type and content. In addition, cellulose nanocrystals are used to enhance the properties of the sheet-molding compound resin system. The possibility of lightweighting the basalt fiber/epoxy and glass fiber/epoxy sheet-molding compound composites is explored by replacing a portion of the fibers, i.e. 12¨C16£¿wt%, with a small amount cellulose nanocrystals, i.e. 1¨C2£¿wt%. No significant difference was found between the basalt fiber/epoxy and glass fiber/epoxy sheet-molding compound composites in terms of mechanical and impact properties. When cellulose nanocrystals were added to the composites, the properties of glass fiber/epoxy sheet-molding compound composites were enhanced while those of basalt fiber/epoxy sheet-molding compound composites deteriorated %K Cellulose nanomaterials %K sheet-molding compounds %K polymer-matrix composites %K lightweighting %K mechanical properties %U https://journals.sagepub.com/doi/full/10.1177/0021998318817814