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FEM/CFD thermo-mechanical analyses on IBL Mock-up

A. Sciuccati 18/02/2013TALENT Meeting A. Sciuccati21 Introduction2 Thermal analysis on the central part of the mock-up3 Thermo-mechanical analysis on longitudinally deformation4 Further studiesContents 18/02/2013TALENT Meeting A. Sciuccati3The current ATLAS beam pipe will be extracted and replaced by the IBL package

In order to study the IBL thermo-mechanical behavior and validate the beam pipe design, tests are performed on a mock-up of the IBL

Mock-up differs from the IBL in some aspect (material, geometries, loads and boundary conditions)

To establish a connection between the mock-up and the IBL package, thermo-mechanical simulations are essential

Furthermore, instead of a locally evaluation of the interesting parameters also the complete field distribution can be obtained

FEM/CFD modelization of the mock-up during the two more difficult phases (bake-out and service operation) will be performed

An accurate numerical evaluation of the mock-up behavior allow the correct estimation of the thermo-mechanical load/deformation on the IBL Introduction18/02/2013TALENT Meeting A. Sciuccati4

IBLMock-Upcentral position

Thermal analysis on the central part of the IBL/Mock-upIBL/Mock Up comparison18/02/2013TALENT Meeting A. Sciuccati5Thermal analysis on the central part of the IBL/Mock-upIBL/Mock Up comparison

IBLMock-Upcentral position18/02/2013TALENT Meeting A. Sciuccati6

IBLMock-UpBP (aluminium)Heater(watlow silicon rubber)central positionKapton(polyimide)IPT(carbon fiber)Stave (aluminium)Glue (polyimide resin)Cooling pipe(stainless steel)IST(carbon fiber)IST(carbon fiber)Aluminium foilBP (beryllium)Heater(watlow silicon rubber)Kapton(polyimide)Aluminium foilIPT(carbon fiber)Stave

Thermal analysis on the central part of the IBL/Mock-upIBL/Mock Up comparison18/02/2013TALENT Meeting A. Sciuccati7Thermal analysis on the central part of the IBL/Mock-upBake-out phase

20CInitial temperature = 20C

-40C250C18/02/2013TALENT Meeting A. Sciuccati8Thermal analysis on the central part of the IBL/Mock-upBake-out phase

18/02/2013TALENT Meeting A. Sciuccati9Thermo-mechanical analysis on longitudinally deformationIBL/Mock Up comparison

IBLMock-Up

18/02/2013TALENT Meeting A. Sciuccati10Further studiesIBL/Mock Up comparison

Adapting of the IBL titanium support to the mock-up

thank you for you attention