THE ESTIMATION OF FRACTURE-RESISTANCE OF ORTHOGONAL 3-DIMENSIONAL FIBER-REINFORCED COMPOSITE BY DCB TESTING

Authors
JI M ISHIKAWA H ANAHARA M YASUI Y
Citation
M. Ji et al., THE ESTIMATION OF FRACTURE-RESISTANCE OF ORTHOGONAL 3-DIMENSIONAL FIBER-REINFORCED COMPOSITE BY DCB TESTING, JSME international journal. Series A, mechanics and material engineering, 40(1), 1997, pp. 37-43
Citations number
2
Categorie Soggetti
Engineering, Mechanical","Material Science
Journal title
JSME international journal. Series A, mechanics and material engineering → ACNP
ISSN journal
13408046
Volume
40
Issue
1
Year of publication
1997
Pages
37 - 43
Database
ISI
SICI code
1340-8046(1997)40:1<37:TEOFOO>2.0.ZU;2-6
Abstract
The degree of the enhancement of the fracture resistance of an orthogo nal three-dimensional composite of cabon fiber reinforced epoxy is exp erimentally determined using a DCB testing method. By analyzing the lo ad-displacement curve and the energy change caused by the breaking of the bridging fiber yarn, the mechanism of the enhancement of the bridg ing fiber for the fracture resistance is considered. It was found that the greater the number of bridging yarns in the crack, the greater is the amount of deformation energy per cracking area necessary for crac k propagation. An estimation method for the mode I fracture toughness of the material is presented.