ASTM D3500 Standard Test Methods for Structural Panels in Tension

Wook structural panel tensile testing machine/tensile test: 

1 Test Method A, Tensile Test for Small Specimens: 

1.1 This test method employs small specimens that should have a reduced cross section at the center of their length to avoid failure in the grip area. The transition from full width of specimen to reduced section at the center should be gradual to minimize stress concentration.

1.2 When the measurements of elastic properties are to be made, the length of the reduced cross section at the center should be of sufficient length to accommodate an extensometer.

1.2 Test Method B, Tensile Test for Large Specimens: 

1.2.1 This test method employs large specimens and responds well to manufacturing variables, panel grade characteristics, and other variables influencing the tensile properties of structural panels.

1.2.2 The test specimens are large enough to contain the maximum sized grade characteristics found in panels. The test specimens have a constant cross section since the size and location of grade characteristics control the location of failures and the effect of stress concentration at the grips is overshadowed.