TY  - BOOK
AU  - Daoust,J.
AU  - Vu-Khanh,T.
TI  - A finite element model of the fragmentation test for the case of a coated fiber
KW  - FRAGMENTATION TEST
KW  - COATING
KW  - INTERPHASE
KW  - FINITE ELEMENTS
KW  - ANALYSIS
N2  - The fiber/matrix interface in composite materials is generally studied by means of the fragmentation test by using a single filament embedded in a polymeric matrix. The average shear strength, 5, of the interface is computed from the well-known shear4ag theory. For the case of a fiber coated with a thin layer of an interphase having a low modulus, a finite element analysis model has been developed to describe the profiles of the tensile and shear stresses along a fiber fragment. The introduction of a soft interlayer decreases the stresses at the ends of the fragment, and as the interlayer thickness increases this effect becomes more important. This model shows the limits of the shear-tag theory and could explain experimental results obtained for the case of an elastomer-coated glass fiber in an epoxy matrix
UR  - https://drive.google.com/file/d/1N8FnRUt4SVrrWoLau1CXNefIKqd2bDbm/view?usp=drivesdk
ER  -