Abstract
Failures in fiber-reinforced polymeric composites are often found to occur in the matrix. This matrix-dominated fracture of fiber reinforced composites is controlled by the mechanics of crack growth in the matrix. Therefore, a relationship between the fracture toughness of bulk polymer matrix and composite can be established. One main factor that affects the near tip stress field and governs the instability of the crack is the fiber constraining of the crack. In the present work, a two parameter fracture model was used to estimate fracture toughness of the polymeric matrix in a fiber-reinforced composite materials. Using a model composite, it was demonstrated that the apparent fracture toughness of the matrix was significantly influenced by the surrounding stiff fibers and, consequently, its in-situ toughness is quite different from that of the bulk polymer and that of the composite treated as a homogeneous solid.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
