Gregory J. Smith - Kent WA Stephen H. Ward - Seattle WA Ronald F. Zabora - Kent WA
Assignee:
The Boeing Company - Seattle WA
International Classification:
G01N 304
US Classification:
73860
Abstract:
Apparatus for stabilizing a test specimen in a compression/tension testing machine. The apparatus supports the test piece along its lengthwise edge or edges to prevent unwanted Euler buckling, however in a manner so as not to prevent sublaminate buckling. In one embodiment the apparatus supports the test piece along both of its lengthwise edges while engaged between the grips of the test machine. In a second embodiment, the apparatus supports the test piece along only one of its lengthwise edges. In a third embodiment, the apparatus includes grip plates which are mounted to the test machine and which engage a portion of the test specimen while the remainder of the specimen is supported along its lengthwise edges by stabilizer plates.