Variations of Fatigue Damage Growth in Cross-Ply and Quasi-Isotropic laminates Under High-Cycle Fatigue Loading

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概要

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• The behavior of transverse crack growth and delamination growth under high-cycle fatigue loadings was investigated with cross-ply CFRP laminates, [0/902]s and [0/906]s, and quasi-isotropic CFRP laminates, [45/0/-45/90]s. As a result, it was observed that the behavior of damage growth was different depending on the applied stress level. The growth of local or edge delamination was exacerbated under the test conditions of a low applied stress level and high-cycle loadings, because the areas of stress concentration were applied with high-cyclic loadings. On the other hand, when the fatigue tests were conducted under the applied stress level of 40% of the transverse crack initiation, the growth of transverse cracks was hardly observed until 108 cycles with [0/902]s, [0/906]s and [45/0/-45/90]s laminates.

著者

• Hosoi Atsushi

  Department Of Mechanical Science And Engineering Nagoya University

• SHI Jiadi

  Depatment of Applied Mechanics and Aerospace Engineering, Waseda University

• SATO Narumichi

  Composite Materials Research Laboratories, Toray Industries, Inc.

• KAWADA Hiroyuki

  Depatment of Applied Mechanics and Aerospace Engineering, Waseda University

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