Effect of epoxy glass fiber reinforcement on dynamic characteristics of sheet metal structure

Abstract

Stamped sheets are widely used in automotive and industrial structures. Their stiffness and strength depends on various shapes in which they are stamped (trapezoidal, semi-circular). Epoxy glass fiber is widely used for replacing the actual components or by reinforcement. Reinforcement of this sheet metal structures with epoxy glass fiber will adhere its strength characteristics and also help in stiffing the structure. In order to use same shape of structure with high stiffness reinforcement of epoxy glass fiber can be used on that structure. Vibration of plates greatly depends upon various characteristics like aspect ratio, boundary condition and fiber orientation. The developed shape of structure after sheet metal processing and the thickness of the structure also contributes to its stiffness. Present study involves vibration analysis based on the geometry of the stamped sheets. Fixed – fixed boundary conditions are taking into the consideration, because Stamped sheets generally fails at fastened locations or welded locations. Modal analysis is performed to study dynamic characteristics of reinforced structures. In order to validate the experimental results Comparative analysis is carried out by using finite element analysis. Conclusions are drawn and suitable future scope is suggested.