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fiber pull-out

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Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0009073
EISBN: 978-1-62708-177-1
... grinding methods. The article summarizes the rough and final polishing steps for both hand and automated techniques. Common artifacts that may be created during grinding and polishing steps of composite samples are reviewed. These include scratches, fiber pull-out, matrix smears, streaks, erosion...
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Published: 01 November 1995
Fig. 3 Fiber/resin pull-out. (a) 30°; 20×. (b) ±45°; 170× More
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Published: 15 May 2022
Fig. 3 Effects of fiber, matrix, and their bonding strength and resistance of failure mechanisms. (a) Fiber bridging, (b) fiber/ matrix debonding, and (c) fiber pulling-out and fracture More
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Published: 01 January 2002
in both the directions resulting in high wear. (g) PEI CF (O N ) CF tips showing less fiber damage (and hence less wear); cavities due to fiber pull out. (h) PEI G3 (O P ) excessive damage to GF in both the directions due to microcutting. Source: Ref 36 More
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Published: 01 January 1997
that of the matrix alone. The crack aperture continues to be held together by fiber until fibers pull out of the matrix. More
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Published: 01 January 1997
the matrix but around the fibers. Multiple cracks accumulate if the fibers bridging the cracks can sustain the load. (c) After attaining multiple matrix cracks with an equilibrium spacing, fibers fail at flaws with increasing load, and not necessarily in the bridged regions of highest stress. (d) Fibers pull More
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Published: 01 January 2001
Fig. 6 Fracture mirrors on pulled-out fiber fracture surfaces of Nicalon fiber reinforced SiC-matrix composites with carbide interphase. (a) 298 K. (b) 800 K. (c) 1200 K. Source: Ref 6 More
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Published: 01 January 2001
Fig. 8 Fatigue striations in the resin beneath a carbon fiber that was pulled out of a carbon/epoxy (AS4/3501-6) laminate following mode I fatigue loading. 5000× More
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003486
EISBN: 978-1-62708-195-5
... the brittle fracture problem associated with ceramics by providing increased fracture toughness ( Fig. 16 ). The principal mechanisms that toughen CFCC components are: Deflection and bridging of cracks by the ceramic fibers Fiber pull-out from the ceramic matrix (Fiber pull-out is achieved...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002415
EISBN: 978-1-62708-193-1
..., resulting in a fairly smooth fracture surface across the section. With a weak bond, the crack is more likely to lead to interfacial debonding and extensive fiber pull-out. An intermediate bond shows irregular failure surfaces with some fiber pull-out. These failure mechanisms occur under static and fatigue...
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Published: 01 November 1995
Fig. 30 Fiber pullout test. (a) Experimental setup. (b) Stress required to pull fiber out vs. embedded fiber length. Above the critical length, l c , the embedded fiber will fracture under the action of the pulling force (tensile stress). Source: Ref 129 More
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Published: 01 January 2002
–e) Worn surface of PEI GF+gr ( L , 112 N; V , 2.1 m/s). (b) Severe melt flow of polymer in sliding direction with maximum fibers normal to the surface, cracks generated in sliding direction, and a pulled out fiber, (c) Magnified view of pulled-out fiber from the matrix with worn elliptical More
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003469
EISBN: 978-1-62708-195-5
... that not only are long fiber lengths apparent, but also many holes are visible from which fibers have been pulled out. It is important to note that the nonlinear stress- strain behavior occurs because of debonding of the fiber/matrix interface and subsequent fiber pullout due to fracture of the interphase...
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Published: 01 January 2002
orientation showing fiber cracking (edge); (c) AF(P) showing pull-out of aramid fiber. Source: Ref 5 More
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Published: 01 January 2002
thinning of fibers; 3, interfacial separation of fiber and matrix; 4, fiber cracking; 5, back-transferred polymer or organic fibers (film and layered wear debris) showing delamination and cracking; 6, metallic and wear debris transferred from the counterface; 7, pulled-out or peeled-off fiber pieces More
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Published: 15 May 2022
; 3, interfacial separation of fiber and matrix; 4, fiber cracking; 5, back-transferred polymer or organic fibers (film and layered wear debris) showing delamination and cracking; 6, metallic and wear debris transferred from the counterface; and 7, pulled-out or peeled-off fiber pieces More
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Published: 01 January 2001
Fig. 7 Changes in macroscopic fracture with increasing temperatures. Fracture mirrors on pulled-out fiber fracture surfaces of Nicalon fiber reinforced Al 2 O 3 -matrix composites with boron nitride interphase. (a) 293 K. (b) 1073 K. (c) 1273 K. Source: Ref 7 More
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003572
EISBN: 978-1-62708-180-1
... and third body abrasion due to loose grit (middle portion) on the softened matrix. (f) PEI CF (O P ) excessive breakage of an array of CF in both the directions resulting in high wear. (g) PEI CF (O N ) CF tips showing less fiber damage (and hence less wear); cavities due to fiber pull out. (h) PEI G3 (O...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006869
EISBN: 978-1-62708-395-9
...; and 7, pulled-out or peeled-off fiber pieces Different wear mechanisms and friction coefficients can be observed with each fiber orientation. The friction coefficient in an AP orientation is lower than in N and P orientations and can be defined as a function of orientation and pressure ( Ref 9...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003427
EISBN: 978-1-62708-195-5
... Abstract This article focuses on the factors to be considered for selecting fasteners for joining carbon fiber composites. These considerations include corrosion compatibility, fastener materials, strength, stiffness, head configurations, importance of clamp-up, hole fit, and lightning...