Low-temperature mechanical properties of glass/epoxy laminates

Journal Article · Mon Jan 27 04:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4860612· OSTI ID:22264094

Reed, R. P. ^[1]; Madhukar, M.; Thaicharoenporn, B. ^[2]; Martovetsky, N. N. ^[3]

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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)

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.

• OSTI ID: 22264094
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1574; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
EPOXIDES
FLEXURAL STRENGTH
ITER TOKAMAK
SHEAR
SHEAR PROPERTIES
SOLENOIDS
THICKNESS