Study on the repeatability of manufacturing nano-silica (SiO2) reinforced composite laminates

International Conference on Recent Advances in Materials & Manufacturing Technologies

Prince Jeya Lal, L.^1 ; Ramesh, S.^1 ; Natarajan, Elango^2

Department of Mechanical Engineering, KCG College of Technology, Tamil Nadu, Chennai 97, India^1

Faculty of Engineering, UCSI University, Kuala Lumpur, Malaysia^2

关键词: Coefficient of variation;    Composite laminate;    Equivalent condition;    Flexural loading;    Flexural tests;    Homogeneous distribution;    Nano Silica;    Reinforced composites;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/346/1/012083/pdf
DOI  :  10.1088/1757-899X/346/1/012083

来源: IOP

【 摘 要 】

Repeatability to manufacture nano-silica reinforced composite laminates with consistent mechanical properties is studied. In this study, composite laminates are manufactured by hand layup and there after mechanical properties of the laminates are evaluated under tensile and flexural loading conditions. Composite laminates are fabricated and tested under equivalent conditions. Plain weave E-Glass fabric and epoxy LY556 are used as reinforcement and matrix. Nano-silica of size 17nm is used as filler. To enhance the reliability of composite characterization, utmost care is taken to avoid defects like voids, surface defects and under-saturations. Homogeneous distribution of nano silica in matrix is analyzed using TEM study. Inconsistencies in mechanical properties are quantified by coefficient of variation. In this study, the coefficient of variation is estimated in terms of break load for tensile test is 4.45 and for flexural test is 2.27 and is well within the limits.