Title :
Structural Properties and Testing of a Composite Banding Used in High-Speed Rotors
Author :
Lelos, Vasileios ; Manifold, Steve ; Granier, John
Author_Institution :
Austin Center for Electromech., Univ. of Texas, Austin, TX
Abstract :
The use of high-strength structural composite bandings is essential for high-speed rotors. In addition to bandings designed for maximum stiffness and strength, there is also a need for bandings that exhibit a controlled radial growth during operation. Controlling the radial growth rate of rotor bandings to match the growth of other rotor components maximizes the structural integrity of the rotor by minimizing reaction forces between parts during operation. This paper presents the structural material properties and strain-to-failure of a composite banding built with a nontraditional layup consisting of high-strength IM7 hoop filament windings and a combination of T700 tape laid at 0deg and plusmn45deg. The analysis and structural test results used to determine the strength of a composite banding with this layup is discussed
Keywords :
bending; composite materials; forming processes; mechanical testing; rotors; structural engineering; turbomachinery; IM7 hoop filament windings; composite bending strain-to-failure; high-speed rotors; radial growth control; rotor components; structural material properties; Capacitive sensors; Composite materials; Force control; Laminates; Material properties; Materials testing; Optical fiber testing; Rotors; Strain control; Wounds; 977-2 resin; Composites; IM7 hoop filament windings; T700 tape; composite banding; controlled radial growth; flywheels; generators; hoop stiffness; hydroburst test; material properties; rotor; strain-to-failure; structural testing of composites;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.887700
