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Abstract

The influence of induced interlaminar loads on the structural performance of thickness-tapered laminates is investigated using an energy-based damage tolerance methodology. An analytical model based on the assumptions of shear deformation plate theory is presented. The model employs linear-elastic fracture mechanics to determine the strain energy release rate characteristic of delamination growth from an embedded flaw. The solution is general in terms of taper thickness, delamination size, laminate fiber orientation and material interlaminar fracture toughness. As such, the model provides a preliminary design tool for the evaluation of interlaminar performance of symmetric tapered composite laminates.

Keywords

tapered laminates interlaminar fracture shear deformation plate theory

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References

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Plate Theory Model for Thickness Tapered Composite Laminates

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