Mechanical properties of epoxy impregnated superconducting solenoids

Author

Dixon, Iain R. ; Walsh, Robert P. ; Markiewicz, W. Denis ; Swenson, Charles A.

Author_Institution

Nat. High Magnetic Field Lab., Tallahassee, FL, USA

Volume

32

Issue

4

fYear

1996

fDate

7/1/1996 12:00:00 AM

Firstpage

2917

Lastpage

2920

Abstract

The mechanical properties of epoxy impregnated coils are critical to proper stress analysis of high field superconducting magnets. In order to identify the engineering properties of coil composites, mechanical test specimens of epoxy impregnated coil windings are prepared. The samples consist of multiple layers of superconductor separated with interlayer insulation and are epoxy impregnated. Mechanical tests are performed at liquid nitrogen and liquid helium temperature. Orthotropic elastic properties are measured for the composite and used for mechanical analyses. Properties in a direction longitudinal to the conductor (hoop direction) are measured in tension. The compression modulus is measured for properties transverse to the conductor, representing radial and axial directions

Keywords

Young´s modulus; compressive testing; epoxy insulation; multifilamentary superconductors; organic compounds; stress analysis; stress-strain relations; superconducting coils; superconducting magnets; axial directions; coil composites; coil windings; compression modulus; engineering properties; epoxy impregnated coils; high field superconducting magnets; hoop direction; interlayer insulation; liquid helium temperature; liquid nitrogen temperature; mechanical analyses; mechanical properties; mechanical test specimens; orthotropic elastic properties; radial directions; stress analysis; superconducting solenoids; Conductors; Insulation; Magnetic analysis; Mechanical factors; Performance evaluation; Stress; Superconducting coils; Superconducting epitaxial layers; Superconducting magnets; Testing;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.511486

Filename

511486