1. Reference problem

1.1. Geometry

Point coordinates:

	\(A\)	\(B\)	\(E\)		\(F\)	\(C\)	\(D\)
\(x\)	\(0.1\)	\(0.2\)	\(0.1\mathrm{\times }\mathrm{cos}(45)\)		\(0.2\mathrm{\times }\mathrm{cos}(45)\)	\(0.1\mathrm{\times }\mathrm{cos}(22.5)\)	\(0.2\mathrm{\times }\mathrm{cos}(22.5)\)
\(y\)	\(0\)	\(0\)	\(0.1\mathrm{\times }\mathrm{sin}(45)\)		\(0.1\mathrm{\times }\mathrm{sin}(45)\)	\(0.1\mathrm{\times }\mathrm{sin}(22.5)\)	\(0.1\mathrm{\times }\mathrm{sin}(22.5)\)
\(z\)	\(0\)	\(0\)	\(0\)		\(0\)	\(0\)	\(0\)

1.2. Material properties

• Young’s modulus: \(E\mathrm{=}{2.10}^{5}\mathit{MPa}\)

• Poisson’s ratio: \(\nu \mathrm{=}0.4999\)

1.3. Boundary conditions and loads

Radial displacement \(U_0=6.10^{-5}m\) is imposed on the inner surface.