Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7892194 | Composites Part A: Applied Science and Manufacturing | 2015 | 9 Pages |
Abstract
Carbon black (CB) reinforced epoxy (i.e., CB-epoxy) interleaf was employed to improve the interlaminar mechanical properties of carbon fiber reinforced plastic (CFRP) laminates. Double cantilever beam tests showed that the Mode-I fracture toughness was increased with addition of CB-epoxy interleaf. With 15Â g/m2 addition of CB, the CFRP laminates demonstrated the highest Mode-I fracture toughness and resistance, which were 50.3% and 88.6% higher than those of pristine CFRP laminates, respectively. End notched flexure tests demonstrated the similar toughening effect of CB-epoxy interleaf on the Mode-II fracture toughness of CFRP laminates. With 10Â g/m2 addition of CB, the CFRP laminates demonstrated the highest Mode-II fracture toughness, which was 145% higher than those of pristine CFRP laminates. Fracture surfaces were observed to explore the enhancement mechanisms. Moreover, finite element analyses based on the cohesive zone model were performed, which indicated the increased interlaminar tensile and shear strengths.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Huiming Ning, Yuan Li, Jinhua Li, Ning Hu, Yaolu Liu, Liangke Wu, Feng Liu,