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ASTM D7336 / D7336M - 16
Standard Test Method for Static Energy Absorption Properties of Honeycomb Sandwich Core
Active Standard ASTM D7336 / D7336M | Developed by Subcommittee:
Book of Standards Volume:
Hardcopy ()
Standard + Redline PDF Bundle
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Significance and Use
 Sandwich honeycomb core materials are used extensively in energy absorption applications, due to their ability to sustain compressive loading while being crushed. Proper design of energy absorption devices utilizing sandwich honeycomb core materials requires knowledge of the compressive crush stress and crush stroke properties of the honeycomb core material.
 The procedures contained within this standard are intended to assess the crush stress and crush stroke properties of the sandwich honeycomb core material under static compressive loading. The dynamic crush stress of the honeycomb core material may vary from that measured under static loading, depending upon factors such as honeycomb core material thickness, core material density, impact velocity, etc.
 This test method provides a standard method of obtaining the compressive crush stress and crush stroke for sandwich honeycomb core material structural design properties, material specifications, research and development applications, and quality assurance.
 This test method is not intended for use in crush testing of stabilized honeycomb core materials (for which the facing plane surfaces of the honeycomb core material are dipped in resin to resist local crushing) or sandwich specimens (for which facings are bonded to the honeycomb core material).
 Factors that influence the compressive crush stress and crush stroke and shall therefore be reported include the following: honeycomb core material, methods of material fabrication, core material geometry (nominal cell size), core material density, specimen geometry, specimen preparation, specimen conditioning, environment of testing, specimen alignment, pre-crush procedure, pre-crush depth, loading procedure, and speed of testing.
 This test method determines the static energy absorption properties (compressive crush stress and crush stroke) of honeycomb sandwich core materials. These properties are usually determined for design purposes in a direction normal to the plane of facings as the honeycomb core material would be placed in a structural sandwich construction.
 Permissible core materials are limited to those in honeycomb form.
 This test method is not intended for use in crush testing of stabilized honeycomb core materials (for which the facing plane surfaces of the honeycomb core material are dipped in resin to resist local crushing) or sandwich specimens (for which facings are bonded to the honeycomb core material).
 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not
therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
 Within the text the inch-pound units are shown in brackets.
 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)
ASTM Standards
Test Method for Density of Sandwich Core Materials
Terminology of Structural Sandwich Constructions
Terminology Relating to Plastics
Terminology for Composite Materials
Test Method for Moisture Absorption Properties and Equilibrium Conditioning of Polymer Matrix Composite Materials
Practices for Force Verification of Testing Machines
Terminology Relating to Methods of Mechanical Testing
Test Methods for Rockwell Hardness of Metallic Materials
Practice for Calculating Sample Size to Estimate, With Specified Precision, the Average for a Characteristic of a Lot or Process
Practice for Use of the Terms Precision and Bias in ASTM Test Methods
Terminology Relating to Quality and Statistics
Guide for Identification of Fiber-Reinforced Polymer-Matrix Composite Materials in Databases
Guide for Recording Mechanical Test Data of Fiber-Reinforced Composite Materials in Databases
Guide for Identification of Fibers, Fillers, and Core Materials in Computerized Material Property Databases
ICS Number Code 83.140.99 (Other rubber and plastic products)
Referencing This Standard
Link to Active (This link will always route to the current Active version of the standard.)
DOI: 10._D7336M-16
ASTM International is a member of CrossRef.
Citation Format
ASTM D7336 / D7336M-16, Standard Test Method for Static Energy Absorption Properties of Honeycomb Sandwich Core
Materials, ASTM International, West Conshohocken, PA, 2016,