This study deals with new ideas in composite material technology. Specifically it is a representation of work done to improve the physical strength and stiffness properties of a cellular plastic by reinforcing it with short chopped glass fibers. Previous work has been examined to discover what has been accomplished in the area of fracture mechanics and the reasons for improved properties of the fiber filled material over the unfilled matrix. Several ideas are presented which suggest a different or modified fracture mechanism over what was gleaned out of the literature. Tests were performed to check their validity.Mechanical Engineerin
