Checking the Carbon Fibre properties of the ATLAS barrel using FEA

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Checking the Carbon Fibre properties of the ATLAS
barrel using FEA
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ATLAS Barrel with honeycomb sandwich structure
made of carbon fibre composite
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Testing of the material behaviour of the
honeycomb structure
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Tuning of an equivalent plate structure with the
same material properties as the honeycomb
structure
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Applying the equivalent material properties to
the barrel model
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Data recorded at the Barrel acceptance test
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The Development of the MICE window using FEA
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3-D view of the MICE Absorber Window with
torispherical window
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Original design - torispherical Window
Bellow window Mark 1 design
Bellow window Mark 2 design
Bellow window Mark 3 design
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Window Thickness comparison between Torispherical
and Mark 1 Bellow Windows
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The 22cm Absorber Window
Deflection of the optimised Window at burst
pressure (125 psi)
Deflection of previous window at burst pressure
(121psi)
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The 34cm Vacuum Window -- internal pressure
Deflection of the optimised Window at burst
pressure (83 psi)
Deflection of previous window at burst pressure
(79psi)
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The 34cm Vacuum Window -- incremental external
load
No buckling at 52 psi
Local buckling detected at 54 psi
The 0.13mm thick window
General buckling developed at about 55 psi
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The 34cm Vacuum Window -- incremental external
load
Shape of Window at first yield ( P 34.5psi )
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Previous Window design
Optimised Window design
Thk. 5mm
Thk.0.9mm
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Fluid Flow and Thermal performance study of the
Liquid Hydrogen Absorber using CFD (Computational
Fluid Dynamics) technique
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GHe outlets
Solid dividing wall
GHe inlets
beam
LH2 region
Absorber diameter 300mm Beam diameter 10mm,
Power 150W GHe pipe diameter 15mm, length of
pipe is 15mm, inlet velocity 2m/s Multicomponent
fluid domain GHe, LH2, fluid sub-domain beam,
solid sub-domain wall Turbulent Model
K-Epsilon Initial temperature GHe17K, LH2 17K
Meshed model
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