Stress Analysis of Infinite Composite Plate With Circular Hole, Subjected To Moment and Torsion At Infinity

Abstract

Composite laminated plates are being increasingly used in modern engineering appli-cations, due to their high strength-to-weight and stiness-to-weight ratios. The highspecic strength and specic stiness which are the bases of the superior structuralperformance of composite materials provide the composite materials many applica-tion choices.Holes of dierent shapes are inevitable to meet certain operational requirements.These holes and openings act as stress raisers. Thus, it is essential to predict thestress elds around these holes.In the present work, stress functions for a innite composite laminated plate with cir-cular hole subjected to in-plane and bending load have been obtained using Mushkel-ishivilli's complex variable approach. The generalized stress function so obtained hasbeen coded using MATLAB 7.0.Furthermore,the eect of various parameters such as Loading conditions, ber orien-tation angle, stacking sequence and material property on the stress functions havebeen studied. The results obtained are in close agreement with available literature.ANSYS 11.0 has been used as FEM tool to compare the results of present solution,the results are well matching with that of FEM solutions.Analytical method is superior as it facilitates the parametric study of the stress anal-ysis and takes very less time.Keywords: Bending of anisotropic plates; Complex potential method; Compositematerials; Stress resultants and moments around holes; Symmetric laminates