Mechanical Properties of Epoxy and Its Carbon Fiber Composites Modified by Nanoparticles

Figure 5

Compression failure process of pure epoxy: (a) at beginning; (b) side damage and a damage point at bottom occur; (c) the damage point propagates at bottom along the direction of 45°; (d) at the moment of failure.

(a)

(b)

(c)

(d)