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Title: Low-temperature mechanical properties of glass/epoxy laminates

Selected mechanical properties of glass/epoxy laminate candidates for use in the electrical turn and ground insulation of the ITER Central solenoid (CS) modules were measured. Short-beam shear and flexural tests have been conducted on various E-glass cloth weaves/epoxy laminates at 295 and 77 K. Types of glass weave include 1581, 7500, 7781, and 38050, which represent both satin and plain weaves. The epoxy, planned for use for vacuum-pressure impregnation of the CS module, consists of an anhydride-cured bisphenol F resin system. Inter-laminar shear strength, flexural elastic modulus, and flexural strength have been measured. The data indicate that these properties are dependent on the volume percent of glass. Short-beam shear strength was measured as a function of the span-to-thickness ratio for all laminates at 77 K. Comprehensive fractography was conducted to obtain the failure mode of each short-beam shear test sample.
Authors:
 [1] ; ;  [2] ;  [3]
  1. Cryogenic Materials, Inc., Boulder, CO 80305 (United States)
  2. Magnet Development Laboratory, Knoxville, TN 37996 (United States)
  3. US-ITER Project, Oak Ridge National Laboratory, Oak Ridge, TN 37830 (United States)
Publication Date:
OSTI Identifier:
22264094
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1574; Journal Issue: 1; Conference: International cryogenic materials conference, Anchorage, AK (United States), 17-21 Jun 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; EPOXIDES; FLEXURAL STRENGTH; ITER TOKAMAK; SHEAR; SHEAR PROPERTIES; SOLENOIDS; THICKNESS