Article
  • Stress Rate Effects on Stress-Strain Responses and Transversal Damage Development Observation in Graphite/Epoxy (0°/90°)2S
  • Lee JR
  • Graphite/Epoxy (0°/90°)2S에 있어서의 Stress Rate의 Stress-Strain 관계에 대한 영향과 Transversal Damage 의 발전과정에 대한 고찰
  • 이재락
Abstract
Stress rate effect (S=0.1 MPa/sec. and 100 MPa/sec.) for the mechanical behavior and the fracture in the graphite/epoxy cross-ply laminates T300/5208 (0°/90°)2s is studied. This effect is slightly shown in transversal behavior and not in longitudinal behavior. There is no stiffness reduction in longitudinal behavior due to transversal cracking in 90°plies. The fiber stiffening effects compensate the matrix damage in the stiffness variation. In addition, the transversal damage development during monotonic tensile loading with very low stress rate is examined microscopically The experimental data shows five steps in the transversal crack development.

Keywords:

  • Polymer(Korea) 폴리머
  • Frequency : Bimonthly(odd)
    ISSN 0379-153X(Print)
    ISSN 2234-8077(Online)
    Abbr. Polym. Korea
  • 2023 Impact Factor : 0.4
  • Indexed in SCIE

This Article

  • 1987; 11(2): 127-132

    Published online Apr 25, 1987

  • 10.7317/pk.
  • Received on Nov 30, -0001
  • Revised on Nov 30, -0001
  • Accepted on Nov 30, -0001

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