ASTM D6416/D6416M-01(2007)
Historical Standard: ASTM D6416/D6416M-01(2007) Standard Test Method for Two-Dimensional Flexural Properties of Simply Supported Sandwich Composite Plates Subjected to a Distributed Load
SUPERSEDED (see Active link, below)
ASTM D6416 / D6416M
1. Scope
1.1 This test method determines the two-dimensional flexural properties of sandwich composite plates subjected to a distributed load. The test fixture uses a relatively large square panel sample which is simply supported all around and has the distributed load provided by a water-filled bladder. This type of loading differs from the procedure of Test Method C 393, where concentrated loads induce one-dimensional, simple bending in beam specimens.
1.2 This test method is applicable to composite structures of the sandwich type which involve a relatively thick layer of core material bonded on both faces with an adhesive to thin-face sheets composed of a denser, higher-modulus material, typically, a polymer matrix reinforced with high-modulus fibers.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
C274 Terminology of Structural Sandwich Constructions
C365/C365M Test Method for Flatwise Compressive Properties of Sandwich Cores
C393 Test Method for Flexural Properties of Sandwich Constructions
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D2584 Test Method for Ignition Loss of Cured Reinforced Resins
D2734 Test Methods for Void Content of Reinforced Plastics
D3171 Test Methods for Constituent Content of Composite Materials
D3878 Terminology for Composite Materials
E4 Practices for Force Verification of Testing Machines
E6 Terminology Relating to Methods of Mechanical Testing
E251 Test Methods for Performance Characteristics of Metallic Bonded Resistance Strain Gauges
E1237 Guide for Installing Bonded Resistance Strain Gages
Keywords
bending; core; deflection; distributed load; face sheets; flexural properties; hydromat; hydrostatic loading; pressure bladder; sandwich composite; sandwich composite plate; sandwich structure; shear;
ICS Code
ICS Number Code 83.120 (Reinforced plastics)
DOI: 10.1520/D6416_D6416M-01R07
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