Analysis of the Behaviour of CFRP Specimens Under BVID Conditions

Composites are the most widely used materials in the aero industry. Among the composite materials CFRP (Carbo Fiber Reinforced Polymer) usage is observed in a large percentage in comparison with other materials due to its strength, stiffness, weight ratios, etc., advantage. With the growth in usage of CFRP the complexity in assessing the fracture behaviour in the composite laminates also increased. So, it is important to study its properties under different conditions. In this study, we analyse the residual mechanical strength of composite material under hygroscopic aging, carbon/epoxy prone to small damage caused by impacts at low energies (BVID - Barely Visible Impact Damages). Low Velocity Impact (LVI) behaviour is much more concentrated along with the loading positions. Centre and near edge loading conditions are considered, analysing the properties of composite material changes in these different conditions. For the composite laminates, the fiber orientation of 0°, +45°, -45°, +90° is the main point of focus.