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International Journal of Fracture

, Volume 187, Issue 1, pp 173–178 | Cite as

Interlaminar Fracture Testing Method for CFRP Using Tensile Loading with Acoustic Emission Analysis

  • Sang-Jae Yoon
  • Dingding Chen
  • Ja-Uk Gu
  • Nak-Sam Choi
  • Kazuo Arakawa
Letters in Fracture and Micromechanics

Abstract

A method is described to characterize the uniformity of interlaminar fracture toughness of laminated carbon-fiber-reinforced polymer (CFRP) composites fabricated by the modified vacuum assisted resin transfer molding process. To prepare specimens for Mode I fracture toughness tests, pieces were sectioned from the inlet and vent regions of a CFRP plate ([+30/-30]6), with a starter crack inserted. The specimens were packed between two rectangular epoxy plates to apply a load using a universal testing machine. Acoustic energy signals were monitored using two sensors attached to the epoxy plates during tensile loading. The difference between the material properties of specimens from the inlet and vent regions of the CFRP plate were statistically compared using one-way analysis of variance (ANOVA); we show that the specimens showed no statistically significant differences in the interlaminar fracture characteristics depending on the part of the mold from which they were taken.

Keywords

Interlaminar fracture test Laminated CFRP VARTM process Acoustic Emission analysis 

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References

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Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • Sang-Jae Yoon
    • 1
  • Dingding Chen
    • 1
  • Ja-Uk Gu
    • 2
  • Nak-Sam Choi
    • 2
  • Kazuo Arakawa
    • 3
  1. 1.Interdisciplinary Graduate School of Engineering SciencesKyushu UniversityFukuokaJapan
  2. 2.Department of Mechanical EngineeringHanyang UniversitySeoulKorea
  3. 3.Research Institute for Applied MechanicsKyushu UniversityFukuokaJapan

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