2015
DOI: 10.1299/transjsme.14-00699
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Effect of fiber discontinuity on mechanical properties of interlaminar-toughened CFRP laminates

Abstract: In fabricating complicated laminated composite structures by using prepregs, various kinds of fiber discontinuities such as ply drop-off and seams can be formed. Special care must be taken for the fiber discontinuity since they can induce stress concentration, and damage onset and growth originated from them may lead to catastrophic failure of the structure. The present study evaluates mechanical behaviour in unidirectional CFRP laminates that contain centered or dispersed fiber discontinuities fabricated by u… Show more

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Cited by 3 publications
(6 citation statements)
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“…That is, the discontinuous structure can avoid the specimen bearing a higher load for reducing the damage under a low energy impact. 14,20 According to the mechanical response of the specimen under impact with an energy of 12 J, the specimen with a discontinuous structure shows a greater deformation for reducing the damage under the action of the impactor (Figure 5D). Further, a discontinuous structure also shows a good effect on the restraining crack growth as displayed in Figure 7.…”
Section: Damage Mechanism Of Discontinuous Laminatesmentioning
confidence: 99%
See 2 more Smart Citations
“…That is, the discontinuous structure can avoid the specimen bearing a higher load for reducing the damage under a low energy impact. 14,20 According to the mechanical response of the specimen under impact with an energy of 12 J, the specimen with a discontinuous structure shows a greater deformation for reducing the damage under the action of the impactor (Figure 5D). Further, a discontinuous structure also shows a good effect on the restraining crack growth as displayed in Figure 7.…”
Section: Damage Mechanism Of Discontinuous Laminatesmentioning
confidence: 99%
“…[16][17][18] The rapid transfer of stress in the direction of the fiber arrangement can be blocked to some extent by interfaces, which suppress the damage among layers and reduce delamination. 14,19,20 Inspired by this, some researchers introduced discontinuous structures to design a structure resembling a nacre material. [21][22][23] Discontinuous structures were introduced into unidirectional continuous fiber reinforced composites, and it exhibited a significant nonlinear response under tensile stress.…”
Section: Introductionmentioning
confidence: 99%
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“…This leads to component failures through delamination and/or failure of resin. Some studies have investigated the mechanical properties and damage behaviors in laminates with fiber discontinuity [10][11][12][13][14][15][16][17]. These works analytically evaluated the strain/stress distributions around the fiber discontinuous area(s) where some of them introduced cracking prediction methods for the composite laminates.…”
Section: Introductionmentioning
confidence: 99%
“…This was done to investigate the deformation behavior that caused the damage due to fiber discontinuity in these laminates. A UD laminate, with its simpler damage behavior compared to other laminate configurations, was used to acquire a deeper understanding based on previous efforts on material characterization [10][11][12][13].…”
Section: Introductionmentioning
confidence: 99%