Force Vibration Response of 3D Braided Spherical Shell Using 3D Finite Element Methods

Textile 3D composites are a new type of composite material that are developed and produced using textile fabrication techniques. The possibility of delamination is eliminated in textile composites as a result of the interlacing of tows in the direction of the thickness of the material. In this study, the technique of volume averaging is utilized in order to ascertain the comparable material characteristics of the braided composite. The matrix is assumed to be homogeneous isotropic, and fibers are transversely isotropic. The spherical shell panels’ forced vibration response is investigated using the third-order shear deformation theory (TSDT) and eight-noded isoparametric finite element technique. Lagrange’s equation of motion is used to generate the generalized dynamic equilibrium equation. The time-dependent problem is solved using the Newmark scheme. With the current results, the accuracy of the current finite element model/code is also confirmed. The spherical shell force vibration response is analyzed by varying different material and geometrical parameters.