Improved composite implicit time integration method for dynamic analysis of viscoelastic damping systems.

In this work, a composite implicit time integration method is generalized for viscoelastic damping (VED) system. The interpolation quadrature formula and velocity approximation function scheme are employed for the convolution integration of VED system. This method is a generic one for any VED models. For comparison, three classical implicit methods are also extended to VED system. The representative numerical examples illustrate that the proposed method can achieved high efficiency and accuracy for VED system.