1. 1 M. CARTY, D. ATTIE, P. COLAS, M. RIALLOT (CEA Saclay) Preliminary Mechanical Analysis of the ILC TPC DESY - September 22, 2009 September 22, 2009 M. CARTY - PMA of the ILC TPC

2. Outline September 22, 2009 2 M. CARTY - PMA of the ILC TPC Structure Configuration PCB Analysis TPC Analysis Perspectives

3. 4,6 m Ø 3,6 m Structure September 22, 2009 3 M. CARTY - PMA of the ILC TPC Version 1 (2 x 84 PCB) - 2 x 12 x PCB1 - 2 x 18 x PCB2 - 2 x 24 x PCB3 - 2 x 30 x PCB4 Version 2 (2 x 65 PCB) - 2 x 15 x PCB1 - 2 x 20 x PCB2 - 2 x 30 x PCB3

4. PCB Analysis - Hypothesis September 22, 2009 4 M. CARTY - PMA of the ILC TPC α Re Ri e p QtRi (mm)Re (mm)α (deg)e (mm) t (mm) (Epaisseur) p (mbar) PCB112395730,530153,2010 PCB218731,51066,520153,2010 PCB3241067,51402,515 3,2010 PCB4301403,5173912153,2010 QtRi (mm)Re (mm)α (deg)e (mm) t (mm) (Epaisseur) p (mbar) PCB515395842,524153,2010 PCB620843,51290,518153,2010 PCB7301291,5173912153,2010 Loads : ∆P = 10 mbar Material : G11 (TBC) E = 24 000 MPa ρ = 1 850 kg/m 3 ν = 0.15 Version 1 – 4 wheel Version 2 - 3 wheel

5. PCB Analysis - Results September 22, 2009 5 M. CARTY - PMA of the ILC TPC PCB1PCB2PCB3PCB4 Deflection (mm)0,120,140,150,16 Sigma VM (Mpa)2,092,242,292,34 PCB5PCB6PCB7 Deflection (mm)0,110,260,22 Sigma VM (Mpa)2,13,273,03 Version 1 – 4 wheel Version 2 – 3 wheel Better from mechanical (deformation) point of view

6. TPC Analysis - Hypothesis September 22, 2009 6 M. CARTY - PMA of the ILC TPC Size : Ø3,6m x 4,6m Weigth : WEB V1 => 2 x 370 kg (for Aluminium) WEB V2 => 2 x 345 kg (for Aluminium) PCB => 2 x 44 kg (TBC) Cage => 265 kg (TBD) Loads : Standard Earth Gravity Case 1 => ∆P = 0 mbar Case 2 => ∆P = 10 mbar (TBC) Material : WEB => Aluminium Alloy (TBC) E = 71 000 MPa ρ = 2 770 kg/m 3 ν = 0.33 TPC => Composite (TBD) E = ??? MPa ρ = ??? kg/m 3 ν = ??? 4,6 m Ø 3,6 m

7. Evaluation of the TPC Material September 22, 2009 7 M. CARTY - PMA of the ILC TPC Ep/uEp/c%E (Mpa)% EE equ (Mpa)Rho (kg/m3)% RhoRho equ (kg/m3) Cu0.005 0.4825 1.04% 124 000 1 285 4 946 8 920 92 2 336 Kapton0.0132.59% 2 500 65 1 420 37 Cu0.0051.04% 124 000 1 285 8 920 92 Epoxy0.08016.58% 3 500 580 1 500 249 GRP0.30062.18% 1 850 1 150 2 600 1 617 Epoxy0.08016.58% 3 500 580 1 500 249 Nomex23.500 100.00% TBD 46 Epoxy0.080 0.810 9.88% 3 500 346 13 056 1 500 148 2 529 GRP0.30037.04% 1 850 685 2 600 963 Epoxy0.0809.88% 3 500 346 1 500 148 Kapton0.12515.43% 2 500 386 1 420 219 Epoxy0.0809.88% 3 500 346 1 500 148 Cu0.0354.32% 124 000 5 358 8 920 385 Kapton0.0759.26% 2 500 231 1 420 131 Cu0.0354.32% 124 000 5 358 8 920 385 TPC => Composite (TBD) Ep = 25 mm E = 1 500 MPa ρ = 172 kg/m 3 ν = 0.3

8. TPC Support September 22, 2009 8 M. CARTY - PMA of the ILC TPC 4 possible configurations Case 1 Case 3 Case 2 Case 4

9. TPC V1 - ∆P= 0 – Results September 22, 2009 9 M. CARTY - PMA of the ILC TPC Case 1 Case 3 Case 2 Case 4

10. TPC V1 - ∆P= 10 – Results September 22, 2009 10 M. CARTY - PMA of the ILC TPC Case 1 Case 3 Case 2 Case 4

11. TPC V1 vs V2 September 22, 2009 11 M. CARTY - PMA of the ILC TPC Deflection (mm) ∆P = 0 mbar∆P = 10 mbar Case 1 V10.20.45 V20.180.42 ∆-10%-7% Case 2 V10.130.43 V20.130.4 ∆0%-7% Case 3 V10.130.4 V20.130.36 ∆0%-10% Case 4 V10.090.21 V20.090.21 ∆0% Déformation V1 - ∆P = 0 mbar Déformation V2 - ∆P = 0 mbar

12. For the future September 22, 2009 12 M. CARTY - PMA of the ILC TPC Evaluation more precise of the Cage material (sample, measure) Simulation with composite material (carbon fiber) for the WEB Thermo-mechanical simulation Other configuration ?

13. September 22, 2009 13 M. CARTY - PMA of the ILC TPC THANKS