Particle Size, Volume Fraction, and Fillers Orientation

1 Particle Size, Volume Fraction, and Fillers Orientation 

Three main mechanisms are reported for fracture of WPCs debonding, wood cracking, and plastic cracking. These mechanisms may alternatively occur depending on wood floxn size and orientation. A review on the development of polymer composites filled with inorganic particles has been reported by Fu et al. [9], 

In order to determine fractme toughness, stress intensity approach and energy approach are applied. The stress intensity approach yields fracture toughness The energy approach provides a critical energy release rate (G. ). Fractme toughness of particle-filled polymer composites shows a very complex variation with increasing particle fraction. The particle size distribution parameter is the one aspect which plays a decisive role on the structmal and mechanical properties of the components and the 

The monotonic increase in with volume fraction for aluminum-reinforced polys- 

Jordan et al. [21] reviewed the processing and mechanical responses of nano- vs micron-sized particulate composites in experimental trends. This fact that nanocomposites serve better in some mechanical aspects than the micron-sized coxmterparts, was one of their conclusions. However, due to physical and chemical differences between the constituent phases of nanocomposites and fabrication challenges, large deviations in properties exist and no general trends were established. 

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