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Material Properties Characterization for Multi-scale Composites: Glass/Epoxy/Silica Nanoparticles

A multi-scale micromechanics technique has been proposed to characterize an advanced multi-scale composite system consisting of continuous microscale diameter fibers and matrix that is reinforced/infused with spherical nano-sized silica particles. The technique was used to predict the effective constituent (fiber/matrix) strength and stiffness material properties using limited test data that is available from Uddin and Sun (2008). The effective constituent properties were then used to simulate longitudinal tension and compression and transverse tension unidirectional coupons using combined progressive failure analysis and the finite element method. The predicted ply properties compared reasonably well with the test data within ±4% error.

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