LOCKHEED F-22 TEST FIXTURES

Many types of compression test fixtures have been devised for use with composite materials over the years.  Most of these were initially company standards that gradually gained more widespread use and acceptance.  The Boeing specifications and related test fixtures, presented elsewhere in this product catalog, are important examples.

Other examples include the Lockheed Martin F-22 Program test methods, documented in Lockheed Martin Process Specification 5PTPTT01-A (Reference 1).  Although not in as common usage as some of the Boeing fixtures, they can also be fabricated by Wyoming Test Fixtures, Inc.  The cost of such "limited production" fixtures is not significantly higher than that of more widely used fixtures.

A few examples are presented here.

C-31 Modified A-11 Compression Test Fixture

A11 – Edge Stabilized Compression Test Fixture

  
A11 – Method 4 Compression Test Fixture

Source of Additional Information:

1)  Process Specification 5PTPTT01-A, "Standard Test Methods for Composites," Lockheed Corporation, March 1994.