Standard Test Method for Two-Dimensional Flexural Properties of Simply Supported Sandwich Composite Plates Subjected to a Distributed Load

Importancia y uso:

5.1 This test method simulates the hydrostatic loading conditions which are often present in actual sandwich structures, such as marine hulls. This test method can be used to compare the two-dimensional flexural stiffness of a sandwich composite made with different combinations of materials or with different fabrication processes. Since it is based on distributed loading rather than concentrated loading, it may also provide more realistic information on the failure mechanisms of sandwich structures loaded in a similar manner. Test data should be useful for design and engineering, material specification, quality assurance, and process development. In addition, data from this test method would be useful in refining predictive mathematical models or computer code for use as structural design tools. Properties that may be obtained from this test method include:

5.1.1 Panel surface deflection at load,

5.1.2 Panel face-sheet strain at load,

5.1.3 Panel bending stiffness,

5.1.4 Panel shear stiffness,

5.1.5 Panel strength, and

5.1.6 Panel failure modes.

Subcomité:

D30.09

Referida por:

D4762-23

Volúmen:

15.03

Número ICS:

83.120 (Reinforced plastics)

Palabras clave:

bending; core; deflection; distributed load; face sheets; flexural properties; hydromat; hydrostatic loading; pressure bladder; sandwich composite; sandwich composite plate; sandwich structure; shear;