Effect of Imperfections and Damping on the Type of Nonlinearity of Circular Plates and Shallow Spherical Shells
Figure 2
(a) Three-dimensional view and
(b) cross-section of the circular plate with geometric imperfection having the
shape of the first axisymmetric mode. As nondimensional quantities are used, and the
amplitude of the
imperfection is made nondimensional with respect to the thickness .