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DELAMINATION INTERACTION IN LAMINATED STRUCTURES

Authors
Journal
Engineering Fracture Mechanics
0013-7944
Publisher
Elsevier
Publication Date
Volume
59
Issue
2
Identifiers
DOI: 10.1016/s0013-7944(97)00120-3
Keywords
  • Composite
  • Delamination
  • Laminate

Abstract

Abstract A triple plate finite element model was proposed to analyze delamination interaction in laminated structures. This model was verified by comparison with an axisymmetric finite element solution on a double delaminated structure. With this model, the results of delamination interaction in a three-point bending composite laminate and a circular laminated plate were obtained. In the case of a three-point bending laminate, both the bending crack induced and the shear crack-induced delaminations will grow at the same time eventually, while in the case of a circular delaminated plate, the vertical distance between these two delaminations has a significant effect on their interaction. Depending on this distance, one delamination may have a shielding effect on the other, while the other delamination may have negligible effect on the former.

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