Cavity revolution and deformation patterns for polymer composites. (a) Cavity volume development at various strain rates. The interfacial damage stage is defined prior to the yielding point. The cavitation stage is defined as the nonlinear development of cavity volume. The crazing stage is defined as linear development of cavity volume. (b) Cavity distribution of PMMA composites with 5% DNT. The contour of crack tips that appeared on surfaces of cavities is represented with grey color. (c) Crazing pattern at various strain rates, and the fibrils are represented with green color. (d) DNT reorientation during tensile deformation.