Simultaneously bending and tensile strain effect on critical current in YBCO coated conductors

Sugano, M.; Sueoka, Koji; Hirano, Naoki; Nagaya, S.

doi:10.1016/j.physc.2007.03.501

Cited by 35 publications

(17 citation statements)

References 4 publications

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“…During fabrication, bending is inevitable in coil winding of a superconducting magnet. Therefore the bending tolerance of CC tapes was one of the foremost fundamental electromechanical properties that have been evaluated by many groups [26][27][28][29][30][31][32]. Fig.…”

Section: Bending Strain Effect On I C At Self-fieldmentioning

confidence: 99%

Review of progress in electromechanical properties of REBCO coated conductors for electric device applications

Shin¹,

Dedicatoria²

2014

Progress in Superconductivity and Cryogenics

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Section: Bending Strain Effect On I C At Self-fieldmentioning

confidence: 99%

Review of progress in electromechanical properties of REBCO coated conductors for electric device applications

Shin¹,

Dedicatoria²

2014

Progress in Superconductivity and Cryogenics

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“…Edge-wise bending strain was calculated using (13) where is distance between base curve and a point on a tape face . We allowed the generalized flat-wise bending radius to be as little as 20 mm, and the edge-wise bending strain to be as high as 0.3% [11], [12].…”

Section: Three-dimensional Magnet Designsmentioning

confidence: 99%

Magnetic Field Design of Coil-Dominated Magnets Wound With Coated Conductors

Takahashi

Amemiya

Nakamura

et al. 2012

IEEE Trans. Appl. Supercond.

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Coil-dominated magnets wound with coated conductors were designed for an FFAG accelerator for carbon therapy, which was designed by applying linear approximation. When designing the coil-end of the magnets, we applied differential geometry. To apply the differential geometry to three-dimensional windings with coated conductors, we introduced the concept of generalized flat-wise bending. Thereby, the combination of flat-wise bending and torsion was considered as bending of developable surface. Generated magnetic field was calculated, and the positions of conductors were optimized to minimize the field error. Three dimensional shapes of magnets were successfully designed with constraints on generalized flat-wise bending and edge-wise bending of coated conductors.

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“…YBCO SMES is smaller than Nb-Ti SMES and can function under higher temperatures owing to its high I c /J c -B properties. Because of their different electrical properties, YBCO SMES and Nb-Ti or Bi SMES must have different systems [3].…”

Section: Outlinementioning

confidence: 99%

“…A CC therefore requires high mechanical strength and high transport current. The stress-strain characteristics of a CC wire for application in an SMES coil were measured [3,4]. The measurement results are plotted in Fig.…”

Section: Estimation Of Hoop-stress Tolerancementioning

confidence: 99%