1Production Engineering Department, V.R. Siddhartha Engineering College, Vijayawada-520 007, India.
2Mech. Engg. Dept., College of Engineering, Andhra University, Visakhapatnam, India.
3Mech. Engg. Dept., P.V.P. Siddhartha Institute of Technology, Vijayawada-520 007, India.
4C. R. Reddy College of Engineering, Eluru, A.P., India.
*Corresponding Author
The thermoelastic behaviour of a cross-ply laminated composite skew plate with elliptical cutout subjected to non-linearly varying temperature loading has been investigated in the present analysis. Major axis of the ellipse parallel to the inclined sides of the skew plate has been taken for the present analysis. A finite element method, which works on the basis of three-dimensional theory of elasticity, is employed to evaluate the transverse deflection, in-plane stresses and interlaminar stresses. The results obtained by varying the skew angle and size of the cutout are discussed. The magnitudes of the in-plane major normal stress σx due to temperature loading is greatly affected by the skew angle variation and its magnitude is observed to be minimum at higher value of the skew angle. It is observed that the values of inter-laminar stresses are observed to be minimum at lower d/l ratio. The solutions of skew structures considered in the present analysis will be useful for the construction of safe and efficient structures like skew bridges and swept wings of aircraft structures.
FEM, Skew Laminate, Cutout, Interlaminar stresses
