Quadratic Stress Criterion for Initiation of Delamination

@inproceedings{Brewer1988QuadraticSC,
  title={Quadratic Stress Criterion for Initiation of Delamination},
  author={John C. Brewer and Paul A. Lagace},
  year={1988}
}
The initiation ofdelamination in graphite/epoxy specimens was investigated both analyt ically and experimentally. Three specific laminate families were investigated: [±15n]s, [± 15 n /0n]s, and [0n / ± 15n] s with the normalized effective ply thickness, n, varying from one to five. Delamination initiation was determined to have occurred when a drop in load was detected and a delamination was observed on a replication of the specimen edge. Measured initiation stresses were correlated using the… CONTINUE READING

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