This test method is used for pull-through strength, i.e., the strength of the plates the fastener is holding together. The test specimen consists of two 1.5” square plates connected at their centers by the desired fastener being tested. To maintain proper rotational alignment of the two halves of the fixture there are two pins and indexing holes. When a compressive…
The bearing strength of a 1.5” wide test specimen assembly containing one or two ¼” diameter fasteners is to be determined.
ASTM Standard D 5961 includes four distinct laminate bearing test methods, identified as Procedures A, B, C, and D. Procedure B is actually a specimen support fixture. The other three procedures, as will be described here, are pin bearing fixtures. PROCEDURE A: DOUBLE-SHEAR TENSILE LOADING Procedure A in ASTM D 5961, has the objective to test composite laminates double-edged.…
