• PT Youtube
  • CW Facebook
  • CW Linkedin
  • CW Twitter
10/10/2011 | 1 MINUTE READ

Park Electrochemical tradenames composite strut

Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

Park's patented composite strut design, used in a NASA and other aerospace systems, has been tradenamed SIGMA STRUT.


Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

Park Electrochemical Corp. (Melville, N.Y., USA) on Oct. 10 announced SIGMA STRUT, the new name for its patented composite strut design. A strut is a structural load-carrying element that transfers loads between two points.

The SIGMA STRUT design is said to provide significant weight savings compared to metal struts and other composite struts. The SIGMA STRUT design uses a metal end-fitting, which is co-cured into each end of the strut without the use of adhesives. This technique allows the fittings to carry the full load of the strut body without having to rely on bond areas to carry shear loads as with typical designs.

SIGMA STRUT designs have been qualified for use on programs such as the Kistler Aerospace K-1 launch vehicle, NASA Space Shuttle Orbiters and NASA’s Max Launch Abort System (MLAS) program, which was developed with Northrop Grumman Corp. NASA has also tested the SIGMA STRUT design as part of the Structurally Efficient Tapered Strut (SETS1 and SETS2) programs in an effort to select one design to use across multiple NASA programs. In each of these programs the SIGMA STRUT design was chosen for its ability to meet all of the program requirements while still being the lightest solution available. 


  • The fiber

    The structural properties of composite materials are derived primarily from the fiber reinforcement. Fiber types, their manufacture, their uses and the end-market applications in which they find most use are described.

  • The matrix

    The matrix binds the fiber reinforcement, gives the composite component its shape and determines its surface quality. A composite matrix may be a polymer, ceramic, metal or carbon. Here’s a guide to selection.

  • Out-of-autoclave prepregs: Hype or revolution?

    Oven-cured, vacuum-bagged prepregs show promise in production primary structures.

Related Topics