Browse > Article
http://dx.doi.org/10.9714/psac.2006.8.4.026

Effect of Epoxy Cracking on Initial Quench Behavior about High Field Superconducting Magnet  

Lee, B.S. (Korea Basic Science Institute)
Kim, D.L. (Korea Basic Science Institute)
Choi, Y.S. (Korea Basic Science Institute)
Yang, H.S. (Korea Basic Science Institute)
Yoo, J.S. (Korea Basic Science Institute)
Publication Information
Progress in Superconductivity and Cryogenics / v.8, no.4, 2006 , pp. 26-29 More about this Journal
Abstract
The study to be presented related on initial behavior of quench concerned with many considerations, such as epoxy impregnated coil, critical current density related on strain and temperature, winding effect and behavior of internal superconducting wire. Especially, the deformation behavior of coils under magnetic field and thermal contractions at cryogenic temperatures to be dealt with the analytical method related on Fracture Mechanics. From the results, we know that the strain by self weight contribute to epoxy cracking at the edge of deformed coils and the deformation behavior relate on epoxy cracking must be dealt with biaxial loading problem. Then, the epoxy crack on $r\theta-plane$ under biaxial loading have been propagated with inclined crack angle and joined superconducting wire. Also, we can explain transfer of epoxy crack propagation energy from epoxy resin to superconducting wire.
Keywords
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Y. Iwasa, E. S. Bobrov, O. Tsukamoto, T. Takaghi, and H. Fujita, 'Experimental and theoretical investigation of mechanical disturbances in epoxy-impregnated superconducting coils. 3. Fracture-induced premature quenches,' Cryogenics, vol.25, no. 6, pp. 317-322, 1985   DOI   ScienceOn
2 R. Yamada, E. Marcsin, A. Lee, M. Wake, and J. M. Rey, '2-D/3-D quench simulation using ANSYS for epoxy impregnated $Nb_3Sn$ High Field Magnets,' IEEE Trans. Appl. Supercond., vol. 13, no. 2, June 2003
3 N. V. Krivolutskaya, and O. A. Kleshnina, 'Stresses in superconducting solenoid winding during its quench,' IEEE Trans. on Magnetics, vol. 30, no. 4, pp. 2547-2549, July 1994   DOI   ScienceOn
4 M. L. Ayari, and Z. Ye, 'Maximum strain theory for mixed mode crack propagation in anisotropic solids,' Engineering Fracture Mechanics, vol. 52, no. 3, pp. 389-400, 1995   DOI   ScienceOn
5 M. M. I. Hammouda, A. S. Fayed, and H. E. M. Sallam, 'Simulation of mixed mode I/II cyclic deformation at the tip of a short kinked inclined crack with frictional surfaces,' International Journal of Fatigue, vol. 25, no. 8, pp. 743-753, 2003   DOI   ScienceOn
6 L. Nobile, and C. Carloni, 'Fracture analysis for orthotropic cracked plates,' Composite Structures, vol. 68, no. 3, pp. 285-293, 2005   DOI   ScienceOn
7 E. S. Bobrov, J. E. C. Williams, and Y. Iwasa, 'Experimental and theoretical investigation of mechanical disturbances in epoxy-impregnated superconducting coils. 2. Shear-stress-induced epoxy fracture as the principal source of premature quenches and training - theoretical analysis,' Cryogenics, vol.25, no. 6, pp. 307-316, 1985   DOI   ScienceOn
8 Y. S. Choi, D. L. Kim, B. S. Lee, H. S. Yang, T. A. Painter, and J. R. Miller, 'Closed-Loop Cooling System for High Field Magnets,' Journal of the Korea Institute of Applied Superconductivity and Cryogenics, vol. 8, no. 1, pp. 59-64   과학기술학회마을
9 H. Fujita, T. Takaghi, and Y. Iwasa, 'Experimental and theoretical investigation of mechanical disturbances in epoxy-impregnated superconducting coils. 4. Prequench cracks and frictional motion,' Cryogenics, vol.25, no. 6, pp. 323-326, 1985   DOI   ScienceOn
10 H. E. Kadi, and F. Ellyin, 'Crack extension in unidirectional composite laminae,' Engineering Fracture Mechanics, vol. 51, no. 1, pp. 27-36, 1995   DOI   ScienceOn
11 W. K. Lim, S. Y. Choi, and B. V. sankar, 'Biaxial load effects on crack extension in anisotropic solids,' Engineering Fracture Mechanics, vol. 68, no. 4, pp. 403-416, 2001   DOI   ScienceOn
12 Y. Iwasa, 'Experimental and theoretical investigation of mechanical disturbances in epoxy-impregnated superconducting coils. 1. General introduction,' Cryogenics, vol.25, no. 6, pp. 304-306, 1985   DOI   ScienceOn
13 R. Yamada, S. W. Kim, A. Lee, R. Wands, J-M. Rey, and M. Wake, 'Quenches and resulting thermal and mechanical effects on epoxy impregnated $Nb_3Sn$ hign field magnets,' in Proc. of the 2001 Particle Accelerator Conf., Chicago, pp. 3424-3426
14 R. Yamada, e. Marcsin, A. Lee, and M. Wake, '3D ANSYS quench simulation of cosine theta $Nb_3Sn$ high field dipole magnets,' IEEE Trans. Appl. Supercond., vol. 14, no. 2, June 2004
15 S. L. Bray, J. W. Ekin, D. J. Waltman, and M. J. Superczynski, 'Quench energy and fatigue degradation properties of Cu- and Al/Cu-stabilized Nb-Ti epoxy-impregnated superconductor coils,' IEEE Trans. Appl. Supercond., vol. 5, no. 2, June 1995
16 T. A. Painter, W. D. Markiewicz, J. R. Miller, S. T. Bole, I. R. Dixon, K. R. Cantrell, S. J. Kenney, A. J. Trowell, D. L. Kim, B. S. Lee, Y. S. Choi, H. S. Kim, C. L. Hendrickson, and A. G. Marshall, 'Requirements and conceptual superconducting magnet design for a 21 T Fourier Transform Ion Cyclotron Resonance Mass Spectrometer,' IEEE Trans. Appl. Supercond., vol. 16, no. 2, June 2006
17 L. Imbasciati, P. Bauer, G. Ambrosio, M. J. Lamm, J. R. Miller, G. E. Miller, and A. V. Zlobin, 'Effect of thermo-mechanical stress during quench on $Nb_3Sn$ cable performance,' IEEE Trans. Appl. Supercond., vol. 13, no. 2, June 2003
18 C. Carloni, and L. Nobile, 'Maximum circumferential stress criterion applied to orthotropic materials,' Fatigue Fract. Engng. Mater. Struct., vol. 28, no. 9, pp. 825-833, 2005   DOI   ScienceOn
19 I. R. Dixon, R. P. Walsh, W. D. Markiewicz, and C. A. Swenson, 'Mechanical properties of epoxy impregnated superconducting solenoids,' IEEE Trans. on Magnetics, vol. 32, no. 4, pp. 2917-2920, July 1996   DOI   ScienceOn
20 I. R. Dixon, W. D. Markiewicz, and W. S. Marshall, 'Axial mechanical properties of epoxy impregnated superconducting solenoids at 4.2 K,' IEEE Trans. Appl. Supercond., vol. 10, no. 1, March 2000