Interpretation of Experimental Results in the Single Pull out Filament Test

Volume 11, Issue 1 (March 1989)

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ISSN: 0884-6804
CODEN: JCTRER
Page Count: 8

Interpretation of Experimental Results in the Single Pull-out Filament Test
Penn, LS
Research professor, Polytechnic University, NY

Lee, SM
Senior staff scientist, Ciba Geigy Corporation, CA

Abstract

The single filament pull-out test is used to directly examine fiber-matrix interface bond strength. The experimental results exhibit a dual behavior in pull-out load as a function of initial embedded length. With increasing embedded length the pull-out load rises, then appears to reach an asymptote. This behavior can be explained by a fracture mechanics argument. In addition, the large experimental scatter is proposed to be inherent in the small test specimen and to be caused by imhomogeneity in surface energy of the smooth fibers tested.

Keywords:
fiber-matrix interface, single-filament pull-out tests, inherent scatter, interface crack propagation

Paper ID: CTR10145J
DOI: 10.1520/CTR10145J
ASTM International is a member of CrossRef.

Author Title Interpretation of Experimental Results in the Single Pull-out Filament Test Symposium , 0000-00-00 Committee D30

		SEDL / Journal of Composites Technology and Research (JCTR) / Citation Page Volume 11, Issue 1 (March 1989) Click here to download this paper now for $25 PDF (240K) View License Agreement ISSN: 0884-6804 CODEN: JCTRER Page Count: 8 Interpretation of Experimental Results in the Single Pull-out Filament Test Penn, LS Research professor, Polytechnic University, NY Lee, SM Senior staff scientist, Ciba Geigy Corporation, CA Abstract The single filament pull-out test is used to directly examine fiber-matrix interface bond strength. The experimental results exhibit a dual behavior in pull-out load as a function of initial embedded length. With increasing embedded length the pull-out load rises, then appears to reach an asymptote. This behavior can be explained by a fracture mechanics argument. In addition, the large experimental scatter is proposed to be inherent in the small test specimen and to be caused by imhomogeneity in surface energy of the smooth fibers tested. Keywords: fiber-matrix interface, single-filament pull-out tests, inherent scatter, interface crack propagation Paper ID: CTR10145J DOI: 10.1520/CTR10145J ASTM International is a member of CrossRef. Author Title Interpretation of Experimental Results in the Single Pull-out Filament Test Symposium , 0000-00-00 Committee D30