DEFLECTION AND STRESS STUDY OF LAMINATED COMPOSITE WITH MULTIPLE HOLES UNDER BENDING LOAD BY FEA

The material “Composite” is considered as one formed by the combination of two or more different materials to create a superior material. The layers of composites stacked and united to get composite laminate. These composite laminates have great applications in many engineering domains like civil, marine, aerospace, biomedical etc because of their excellent properties likehigh strength to weight ratio, better mechanical properties and ease of handling and low cost of production. Most of the applications include composites. The presence of cut outs is a common and necessary feature in composite structures in order to get the required design. Thus it is essential to study the behaviour of composites with multiple holes with respect to different applications in order to provide structural stability and to attain better design and mechanical Properties .The present work represents Analytical and Finite Element Analysis of rectangular plate with and without multiple circular cut outs of various sizes . Various bending loads are applied and studied for deflection occurred and stress created. The material considered was Epoxy Polymer Woven Mat. The standard specimens used are rectangular plate without hole , rectangular plate with 3 holes of 5mm each, plate with 6mm holes and plate with 8mm holes. The analytical and numerical results were compared in Load – Deflection curves and found that both are in good agreement.