1. Reference problem#

1.1. Geometry#

_images/1000050A00000E0E00000BFD3AE61FF5E250652D.svg

It is a thin sphere, with an average radius \({R}_{m}=2.5m\), and a thickness of \(t=0.1m\).

1.2. Material properties#

The material is homogeneous, isotropic, and linear elastic. The elastic coefficients are: \(E=\mathrm{200 000 }\mathrm{MPa}\) and \(\nu =0.3\).

The density is constant and is equal to: \(\rho =7800\mathrm{kg}/{m}^{3}\).

1.3. Boundary conditions and loads#

The structure is free in space.