Analytical Approximations to Buckling Deformation of the Sandwich Beams Including Transverse Shear
This paper presents analytical approximate solutions for the initial post-buckling deformation of the sandwich beams including transverse shear. The approximate procedure is based on the nonlinear beam equation (with transverse shear included), by combining the Newton’s method with the method of harmonic balance, we establish analytical approximations to deformation of the sandwich beams. Illustrative examples are presented for a few typical sandwich construction configurations, and it is shown that these approximate solutions are excellent agreement with the “reference” solutions.
Y. P. Yu et al., "Analytical Approximations to Buckling Deformation of the Sandwich Beams Including Transverse Shear", Advanced Materials Research, Vols. 317-319, pp. 1783-1786, 2011