Investigation of cable insulation and thermo-mechanical properties of epoxy impregnated Nb/sub 3/Sn composite

Chichili, D.R.; Arkan, T.; Ozelis, J.; Terechkine, I.

doi:10.1109/77.828478

Cited by 50 publications

(25 citation statements)

References 1 publication

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“…The total deformation at the end of the compression phase is given by the monotonic loading curve. This phenomenon has been observed also for the impregnated Nb Sn composites [34], [35]. In Fig.…”

Section: Appendix II Different Loading Proceduressupporting

confidence: 53%

Thermomechanical properties of the coil of the superconducting magnets for the Large Hadron Collider

Couturier

Ferracin²,

Scandale³

et al. 2002

IEEE Trans. Appl. Supercond.

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Abstract-The correct definition and measurement of the thermomechanical properties of the superconducting cable used in high-field magnets is crucial to study and model the behavior of the magnet coil from assembly to the operational conditions. In this paper, the authors analyze the superconducting coil of the main dipoles for the Large Hadron Collider. They describe an experimental setup for measuring the elastic modulus at room and at liquid nitrogen temperature and for evaluating the thermal contraction coefficient. The coils exhibit strong nonlinear stressstrain behavior characterized by hysteresis phenomena, which decreases from warm to cold temperature, and a thermal contraction coefficient, which depends on the stress applied to the cable during cooldown.

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Section: Appendix II Different Loading Proceduressupporting

confidence: 53%

Thermomechanical properties of the coil of the superconducting magnets for the Large Hadron Collider

Couturier

Ferracin²,

Scandale³

et al. 2002

IEEE Trans. Appl. Supercond.

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“…Azimuthal preload was adjusted in each magnet, by changing the values of the coil mid-plane shims based on coil size measurements after impregnation and collar-yoke shims based on collared coil diameter measurements [9]. Peak preloads after coil collaring and final assembly are read by strain gauges on the inside surfaces of the coils and the metal coil poles.…”

Section: B Preloadmentioning

confidence: 99%

Development and Test of LARP Technological Quadrupole Models of TQC Series

Bossert

Ambrosio

Andreev

et al. 2008

IEEE Trans. Appl. Supercond.

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Abstract-In support of the development of a large-aperture Nb3Sn superconducting quadrupole for the Large Hadron Collider (LHC) luminosity upgrade, several two-layer technological quadrupole models of TQC series with 90 mm aperture and collar-based mechanical structure have been developed at Fermilab in collaboration with LBNL. This paper summarizes the results of fabrication and test of TQC02a, the second TQC model based on RRP Nb3Sn strand, and TQC02b, built with both MJR and RRP strand. The test results presented include magnet strain and quench performance during training, as well as quench studies of current ramp rate and temperature dependence from 1.9K to 4.5K.

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“…One effect was that of using an infinite stiffness for the outer constraint as opposed to a stainless steel skin with a Young's modulus equal to 206*10 9 Pa and a thickness of 2 mm. In the latter case, the Young modulus used for BSCCO was E =40*10 9 N/m 2 , a value deemed representative of a brittle and epoxy impregnated conductor [6]. For YBCO, E =110*10 9 N/m 2 .…”

Section: Effect Of Temperature and Of Finite Rigidity Of The Constraimentioning

confidence: 99%

Analytical Study of Stress State in HTS Solenoids

Barzi¹,

Terzini²

2009

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Investigation of cable insulation and thermo-mechanical properties of epoxy impregnated Nb/sub 3/Sn composite

Cited by 50 publications

References 1 publication

Thermomechanical properties of the coil of the superconducting magnets for the Large Hadron Collider

Thermomechanical properties of the coil of the superconducting magnets for the Large Hadron Collider

Development and Test of LARP Technological Quadrupole Models of TQC Series

Analytical Study of Stress State in HTS Solenoids

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