New Combined Shear and Compression Test Method

  • P. E. Fabian
  • R. P. Reed
Part of the Advances in Cryogenic Engineering Materials book series (ACRE, volume 42)

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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Copyright information

© Springer Science+Business Media New York 1996

Authors and Affiliations

  • P. E. Fabian
    • 1
  • R. P. Reed
    • 2
  1. 1.Composite Technology Development, Inc.BoulderUSA
  2. 2.Cryogenic Materials, Inc.BoulderUSA

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