Abstract
A new test method was developed to determine shear/compression properties of composite insulation systems used in superconducting magnets. It was developed specifically to enable in-situ testing (without warm-up) of insulation systems in a high flux neutron radiation and cryogenic (4 K) temperature environment at the Munich Research Reactor (FRM — Forschungsreaktor München).
The new shear/compression specimen consists of two sections of composite insulation bonded at a specific angle between three pieces of 316 stainless steel. During the test, the specimen is compressed between two loading platens. By varying the angle of the test specimen, different shear/compression ratios can be evaluated and a shear/compression envelope for various materials can be produced. This test method produces the same shear and compressive strengths found in other shear/compression tests, but the test fixture is smaller, and multiple test specimens are not required. The composite insulation systems were tested at 45° to demonstrate the feasibilty of the test. Specimens were produced from a vacuum pressure impregnation (VPI) resin system and a prepreg resin system. Design and fabrication of the test specimens and their shear and compressive properties are presented.
Keywords
- Toroidal Field
- International Thermonuclear Experimental Reactor
- Insulation System
- Composite Insulation
- Cryogenic Engineer
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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References
NJ. Simon, R.P. Reed, and R.P. Walsh, Compression and shear tests of vacuum-impregnation insulation systems, in: “Advances in Cryogenic Engineering,” vol. 38, Plenum Press, New York (1992) pp. 363–370.
P.E. Fabian, J.B. Schutz, CS. Hazelton, and R.P. Reed, Properties of candidate ITER vacuum impregnation insulation systems, in: “Advances in Cryogenic Engineering,” vol. 40, Plenum Press, New York, (1994) pp. 1007–1014.
J.B. Schutz, and R.P. Reed, Inorganic and hybrid insulation materials for ITER, in: “Advances in Cryogenic Engineering,” vol. 40, Plenum Press, New York, (1994) pp. 985–992.
P.E. Fabian, J.B. Schutz, CS. Hazelton, and R.P. Reed, Candidate ITER insulation materials characterization report, report to MIT Plasma Fusion Center on contract numbers FC A 359063 and FCA-251317–003C, Composite Technology Development, Inc. and Cryogenic Materials, Inc., Boulder, Colorado (January 30, 1994).
P.E. Fabian, R.P. Reed, J.B. Schutz, and T.S. Bauer-McDaniel, Shear/compressive properties of candidate ITER insulation systems at low temperaturesn, to be published in Cryogenics 35 (1995).
C Bushneil and R. Vieira, Memorandum N 11 MD 01 94–10–14 F, 2nd ICG Meeting minutes, September 19–20, 1994, Oxford, UK (1994).
R.P. Reed, P.E. Fabian, T.S. Bauer-McDaniel, C.S. Hazelton, and N.A. Munshi, Effects of neutron/gamma irradiation at 4 K on shear and compressive properties of insulation, to be published in Cryogenics 35 (1995).
H. Gerstenberg, E. Krähling, and H. Katheder, Reactor irradiations at temperatures below 6 K, in: “Advances in Cryogenic Engineering,” vol. 40, Plenum Press, New York, (1994) pp. 1161–1168.
P.E. Fabian, J.B. Schutz, CS. Hazelton, and R.P. Reed, Screening of candidate insulation systems for ITER TF coils, report to MIT Plasma Fusion Center on contract numbers FCA 359063 and FCA-251317–003C, Composite Technology Development, Inc. and Cryogenic Materials, Inc., Boulder, Colorado (August 15, 1993).
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© 1996 Springer Science+Business Media New York
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Fabian, P.E., Reed, R.P. (1996). New Combined Shear and Compression Test Method. In: Summers, L.T. (eds) Advances in Cryogenic Engineering Materials . Advances in Cryogenic Engineering Materials , vol 42. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9059-7_14
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DOI: https://doi.org/10.1007/978-1-4757-9059-7_14
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