New approach to evaluation of fiber/matrix interface

Qing-Qing Ni; Ken Kurashiki; Masaharu Iwamoto

doi:10.1117/12.429585

13 June 2001 New approach to evaluation of fiber/matrix interface

Qing-Qing Ni, Ken Kurashiki, Masaharu Iwamoto

Proceedings Volume 4317, Second International Conference on Experimental Mechanics; (2001) https://doi.org/10.1117/12.429585
Event: Second International Conference on Experimental Mechanics, 2000, Singapore, Singapore

Abstract

A double cleavage drilled compression (DCDC) specimen has been analyzed by the boundary element method (BEM). At the same time, the DCDC specimen of FRP composites was proposed and used to evaluate the interfacial behavior and fracture energy in CFRP model composites. As a result, it was confirmed that the DCDC specimen had a mode I stress distribution for the hole offsetting displacement of b equals 0, which was of a symmetrical hole, while it had the mixed- mode stress distribution for b does not equal 0. The approach of calculating the interfacial fracture energy was established by using both of experimental results and analysis. Furthermore, the bridging fiber DCDC specimen was proposed and the effect of bridging fibers on the loading phase was made clear. It was shown that the DCDC test was a useful method to quantitatively evaluate the interfacial behavior of fiber/matrix in composites.

Citation Download Citation

Qing-Qing Ni, Ken Kurashiki, and Masaharu Iwamoto "New approach to evaluation of fiber/matrix interface", Proc. SPIE 4317, Second International Conference on Experimental Mechanics, (13 June 2001); https://doi.org/10.1117/12.429585

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