Crab Cavity Stress Analysis v.1

24/02/2014

Norbert Kuder

EN-MME-DI

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Materials

Material Young modulus

[GPa]

Poisson ratio

Density [kg/m3]

Niobium 100 0.4 8600

Stainless Steel

200 0.3 7850

Titanium 102 0.34 4510

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Mesh

Global element size 3.0 [mm] Element size for the cavity and helium vessel

2.0 [mm] Tetrahedral mesh Two layers for the cavity.

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Mesh

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Boundary conditions

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Directional deformation

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Directional deformation

0.1mm

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Total deformation

1.3mm

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Equivalent stress

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Equivalent stress

~20-40[MPa]

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