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NCAMP releases material properties for Cytec Cycom prepreg

The National Center for Advanced Materials Performance (NCAMP) at Wichita State University's National Institute for Aviation Research has released the composite material property data and statistical analysis reports along with the material and process specifications for Cytec Cycom 5320-1 T650 Plain Weave prepreg.

The lamina and laminate material property data were generated in accordance to the requirements of NCAMP Standard Operating Procedure 100. Test panels, test specimens and test setups were confirmed by an NCAMP authorized inspection representative, and the testing was witnessed by an NCAMP authorized engineering representative. The statistical analysis reports were generated in accordance with the procedures in Composite Materials Hanbook-17 (CMH-17) Revision G.

These materials are produced by Cytec Industries in accordance with NCAMP material specifications and NCAMP-approved process control documents with change control per FAA guidelines in DOT/FAA/AR-06/10 and DOT/FAA/AR-07/3. The NCAMP documents are intended for general distribution to the public freely or at a price that does not exceed the cost of reproduction and distribution.

Users should understand that the data generated in this program may not fulfill all the needs of any specific company's program; specific properties, environments, laminate architecture and loading situations may require additional testing. In addition, the use of NCAMP material and process specifications do not guarantee material or structural performance. Material users should be actively involved in evaluating material performance and quality including, but not limited to, performing regular purchaser quality control tests, performing periodic equivalency/additional testing, participating in material change management activities, conducting statistical process control and conducting regular supplier audits.

Cytec Industries donated the material for this program, and Gulfstream Aerospace fabricated the test panels for the baseline qualification and allowables program. The companies that have participated in the equivalency programs, data review and supported these efforts include the Air Force Research Laboratory, GE Aviation, Bell Helicopter, Delta Air Lines, General Atomics, Bombardier Aerospace, Korea Aerospace Industries, Burnham Composites, Hawker Beechcraft, Spirit AeroSystems, Gulfstream Aerospace, Northrop Grumman, Triumph Structures (Vought Aircraft Division), Lockheed Martin Aeronautics, Pratt & Whitney, Cytec Industries, Toho Tenax America and the Federal Aviation Administration.

Additional part fabricators that wish to utilize the material property data, allowables and specifications may be able to do so by demonstrating the capability to reproduce the original material properties, a process known as equivalency. More information about this equivalency process including the test statistics and its limitations can be found in Section 6 of DOT/FAA/AR-03/19 and Section 8.4.1 of CMH-17-1G/MIL-HDBK-17-1F.

Press release issued by National Institute for Aviation Research on October 29, 2015

 

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