Spectral Element Modeling for Elastic Two-Layer Beams
This paper develops a spectral element model for elastic-elastic two-layered beams. First, the axial-bending coupled equations of motion for an elastic two-layer laminated beam are derived. The spectral element model is then formulated by using the wave solutions satisfying governing equations in frequency-domain as the frequency-dependent shape functions. The spectral element model is finally applied to a cantilevered elastic-elastic two-layered beam as an illustrative problem. The high accuracy of the present spectral element model is verified by comparing the SEM results with those obtained by conventional FEM.
Young Won Chang, Nack J. Kim and Chong Soo Lee
S. J. You et al., "Spectral Element Modeling for Elastic Two-Layer Beams", Advanced Materials Research, Vols. 26-28, pp. 297-300, 2007