SYMPOSIA PAPER Published: 01 January 1991

Delamination Analysis of Tapered Laminated Composites Under Tensile Loading


A study was conducted to analyze tapered composite laminates under tensile loading. A tapered construction made of S2/SP250 glass/epoxy laminate was used to achieve a thickness reduction using three consecutive dropped plies over a distance of 60 ply thicknesses. The principle of minimum complementary potential energy was used to determine interlaminar stresses. The interlaminar peel stress distribution shows a higher tensile intensity at the taper/thin portion juncture. The total strain energy release rate is determined using a simplified membrane model. Results are compared with a finite element simulation.

Author Information

Armanios, EA
Georgia Institute of Technology, Atlanta, GA
Parnas, L
Georgia Institute of Technology, Atlanta, GA
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Developed by Committee: D30
Pages: 340–358
DOI: 10.1520/STP17726S
ISBN-EB: 978-0-8031-5169-7
ISBN-13: 978-0-8031-1419-7