Rayleigh Damping in Abaqus/Explicit Dynamic Analysis
In the nonlinear time-history analysis for high-rise building, different damping models may lead to results with great difference. Limited by the stable time increment, the stiffness proportional damping is usually neglected in Abaqus/Explicit, and only a simplified mass proportional damping is used, which can be derived from the fundamental frequency and the critical damping factor. In this paper, the influence on the results of this method has been researched by numerical examples, the numerical results also show that the stiffness proportional damping cannot be neglected. Based on these comparisons, a more reasonable damping model is presented for improving the results of high frequencies.
Bale V. Reddy, Shishir Kumar Sahu, A. Kandasamy and Manuel de La Sen
X. M. Chen et al., "Rayleigh Damping in Abaqus/Explicit Dynamic Analysis", Applied Mechanics and Materials, Vol. 627, pp. 288-294, 2014