1. Reference problem#

1.1. Geometry#

Consider the following structure:

_images/Shape1.gif

The tube has an outer radius \({R}_{\mathit{ext}}=11.11{10}^{-3}m\) and a thickness of \(\mathit{ep}=1.27{10}^{-3}m\)

1.2. Material properties#

The material is isotropic elastic whose properties are:

  • \(E=2.056{10}^{11}\mathit{Pa}\)

  • \(\nu \mathrm{=}0.3\)

  • \(\rho \mathrm{=}8357\mathit{kg}\mathrm{/}{m}^{3}\)

  • Shock stiffness: \({K}_{\mathit{choc}}=4{10}^{6}N/m\)

1.3. Boundary conditions and loads#

The game at the ring contact level is \(e=2.9{10}^{-4}m\).

Ring contacts have been removed from \(0.1e\) of the contact nodes.