scholarly journals Evaluation of Fiber/Matrix Interfacial Fracture Toughness and Its Contribution to Composite Toughness by Using Two and Four-Fibers Model Composite Specimens

2008 ◽  
Vol 57 (12) ◽  
pp. 1205-1211 ◽  
Author(s):  
Kozo KOIWA ◽  
Hiroshi TANAKA ◽  
Chiaki HIWA ◽  
Yoshikazu NAKAI
Keyword(s):  
Fracture Toughness ◽  
Interfacial Fracture ◽  
Interfacial Fracture Toughness ◽  
Model Composite ◽  
Fiber Matrix ◽  
Composite Toughness

Estimation of Fracture Toughness of Fiber/Matrix Interface

2013 ◽  
Vol 785-786 ◽  
pp. 145-150 ◽  
Author(s):  
Yu Ping Zhao ◽  
Hong Yuan ◽  
San Xing Liu
Keyword(s):  
Fracture Toughness ◽  
Energy Balance ◽  
Matrix Material ◽  
Interfacial Fracture ◽  
Energy Balance Equation ◽  
Matrix Composites ◽  
Interfacial Fracture Toughness ◽  
External Work ◽  
Numerical Result ◽  
Fiber Matrix

To estimate the level of interfacial adhesion between the fiber and polymer-matrix in fiber/matrix composites, interfacial fracture toughness was derived based on an energy balance scheme. A break gap occurring at the initial interface debond during fragmentation test was taken into account. The external work and work done against friction slip at debonded interface were included in energy balance scheme. The interfacial fracture toughness obtained is a function of fiber and matrix material properties and critical debond strain which is the external strain applied on the specimen to initiate interfacial debonding. The break gap calculated increases with increasing applied load and decreasing friction coefficient. The proportion of each energy terms in energy balance equation was calculated. Comparison between the predicted interfacial fracture toughness and that numerical result was done.

scholarly journals Evaluation of the Interfacial Fracture Toughness of Anodic Bonds

2007 ◽  
Vol 73 (735) ◽  
pp. 1266-1272 ◽  
Author(s):  
Yoshiaki NOMURA ◽  
Masaki NAGAI ◽  
Toru IKEDA ◽  
Noriyuki MIYAZAKI
Keyword(s):  
Fracture Toughness ◽  
Interfacial Fracture ◽  
Interfacial Fracture Toughness
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