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Resin cracking, a cause of coil quenching in superconducting magnets, occurs when a resin contains small flaws and sustains high thermal stress. Seven epoxy resins were chosen in order to evaluate thermo-mechanical properties, small-flaw strength, and creep deformation at low temperatures. Although the plain specimen strengths consistently increase as the temperature decreases, the fracture toughness resulting from large cracks reaches a maximum at around 80 K and then decreases at 4 K. The loss factor during cyclic loading behaves similarly, because of low-temperature relaxation of the resin, and has a maximum value at around 150 K.
Details
- Original title: Cryogenic small-flaw strength and creep deformation of expoxy resins.
- Record ID : 2001-2608
- Languages: English
- Source: Cryogenics - vol. 39 - n. 9
- Publication date: 1999
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Attempts to toughen epoxy resins for cryogenic ...
- Author(s) : SAWA F., HUSSAIN M., NAKAHIRA A., NISHIJIMA S., NIIHARA K., OKADA T.
- Date : 1995
- Languages : Japanese
- Source: Cryogenics/ Cryog. Eng. - vol. 30 - n. 9
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Designing of epoxy resin systems for cryogenic ...
- Author(s) : UEKI T., NISHIJIMA S., IZUMI Y.
- Date : 2005/02
- Languages : English
- Source: Cryogenics - vol. 45 - n. 2
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Thermophysical properties of epoxy composite ma...
- Author(s) : EVSEEVA L. E., TANAEVA S. A.
- Date : 1995/04
- Languages : English
- Source: Cryogenics - vol. 35 - n. 4
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Mechanical properties of low thermal contractio...
- Author(s) : NAKANISI K., OKAMOTO K., KITAMURA S.
- Date : 1997
- Languages : Japanese
- Source: Cryogenics/ Cryog. Eng. - vol. 32 - n. 7
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Effect of dimethylpolysiloxane liquid on the cr...
- Author(s) : YI J. W., LEE Y. J., LEE S. B., et al.
- Date : 2014/05
- Languages : English
- Source: Cryogenics - vol. 61
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