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Submitted
July 31, 2023
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July 31, 2023
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Abstract

The progressive failure analysis of symmetrically laminated rectangular composite plate [0/+45/-45/90]2s with square/rectangular cutout under uniform uniaxial compression loading is carried out using finite element method. Hashins failure criterion is used to predict the failure of lamina. A parametric study has been carried out to study the influence of square/rectangular cutout size, cutout orientation and plate thickness on the ultimate failure load of laminated composite plate under uni-axial compression loading. Ultimate failure loads were computed for six different laminate configurations [0/+45/-45/90]2s, [75/-60/30/-15]2s, [0/90]4s, [-45/45]4s, [15/-75]4s, [30/-60]4s. It is observed that the laminate stacking sequence, plate thickness , cutout size and cutout orientation has substantial influence on the ultimate failure load of notched composite plates.

Keywords

Cutout Size, Cutout Orientation, Material Property Degradation Method, Stacking Sequence, Plate Thickness, Progressive Failure Analysis, FEM

Article Details

How to Cite
Lakshminarayana, A., Vijayakumar, R., & Krishnamohana Rao, G. (2023). Strength Prediction and Damage Assessment of Laminated Composite Plates With Rectangular/Square Cutout Using Finite Element Method. Journal of Aerospace Sciences and Technologies, 69(4), 574–587. https://doi.org/10.61653/joast.v69i4.2017.285
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