1985
DOI: 10.1002/app.1985.070300930
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Fracture behavior of short fiber reinforced thermoplastics I. Crack propagation mode and fracture toughness

Abstract: synopsisThe fracture behavior of several short glass fiber reinforced thermoplastics has been studied. The fracture toughness of these materials may be related to local crack propagation mode, which is found to be highly rate dependent. At low test rates the crack growth in the reinforced polymers tend to follow a fiber avoidance mode, creating a greater area of new surfaces, which in conjunction with greater degree of interfacial debonding and fiber pullout friction leads to a higher fracture resistance. An i… Show more

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Cited by 13 publications
(6 citation statements)
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“…11 [6,9,68,69]. This behavior is also the reason why fibers do not always bridge cracks in short fiber composites, which could significantly influence the fracture toughness.…”
Section: Short Fiber Compositesmentioning
confidence: 97%
See 1 more Smart Citation
“…11 [6,9,68,69]. This behavior is also the reason why fibers do not always bridge cracks in short fiber composites, which could significantly influence the fracture toughness.…”
Section: Short Fiber Compositesmentioning
confidence: 97%
“…The microstructural features, such as fiber volume fraction and length and orientation distributions, determine the properties, especially the failure properties, of the composites through their influence on the initiation and evolution of the micro-damages. Observations have revealed the various micro-damage mechanisms involved in the failure process, including fiber/matrix interface debonding, matrix microcracking, and fiber breakage [4][5][6][7][8][9][10]. In general, the process can be described as having the following four stages.…”
Section: Introductionmentioning
confidence: 99%
“…Such inelastic deformation in FRP was localized onto a narrow region ahead of the crack tip unlike those in metallic materials (3)- (4) . Using the tension-softening concept and assuming a linear decay of stress within the process zone, Homer and Li (5) indicated inelastic behaviour in the "process zone" ahead of the crack tip in a randomly distributed long fiber composite material.…”
Section: Introductionmentioning
confidence: 98%
“…Some papers investigated the static fracture characteristics of random short fiber-polymer composite (3)- (8) .…”
Section: Introductionmentioning
confidence: 99%
“…Inclusion of fibers in a polymer matrix has proven to be an effective method to increase the toughness of the composites, including thermoset and thermoplastic matrices [95][96][97][98][99][100][101]. Toughening is often based on the so-called fiber-bridging effect, see Figure 29.…”
Section: Fiber Toughened Polymersmentioning
confidence: 99%