Effect of Imperfections and Damping on the Type of Nonlinearity of Circular Plates and Shallow Spherical Shells

<table>Type of nonlinearity for
mode (0,1) with an axisymmetric imperfection having the shape of mode
(0,1).</table>

Mathematical Problems in Engineering

Figure 4: Effect of Imperfections and Damping on the Type of Nonlinearity of Circular Plates and Shallow Spherical Shells 