ASTM D7250/D7250M-20
Standard Practice for Determining Sandwich Beam Flexural and Shear Stiffness

Standard No.
ASTM D7250/D7250M-20
Release Date
2020
Published By
American Society for Testing and Materials (ASTM)
Latest
ASTM D7250/D7250M-20
Scope
1.1 This practice covers determination of the flexural and transverse shear stiffness properties of flat sandwich constructions subjected to flexure in such a manner that the applied moments produce curvature of the sandwich facing planes. Permissible core material forms include those with continuous bonding surfaces (such as balsa wood and foams) as well as those with discontinuous bonding surfaces (such as honeycomb). The calculation methods in this practice are limited to sandwich beams exhibiting linear force-deflection response. This practice uses test results obtained from Test Methods C393/C393M or D7249/D7249M, or both. 1.2 Units—The values stated in either SI units or inchpound units are to be regarded separately as standard. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined. 1.2.1 Within the text, the inch-pound units are shown in brackets. 1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

ASTM D7250/D7250M-20 Referenced Document

  • ASTM C273 Standard Test Method for Shear Properties of Sandwich Core Materials*， 2024-04-21 Update
  • ASTM C393/C393M Standard Test Method for Core Shear Properties of Sandwich Constructions by Beam Flexure
  • ASTM D3878 Standard Terminology Composite Materials
  • ASTM D7249/D7249M Standard Test Method for Facesheet Properties of Sandwich Constructions by Long Beam Flexure
  • ASTM D883 Standard Terminology Relating to Plastics*， 2024-02-01 Update
  • ASTM E122 Standard Practice for Calculating Sample Size to Estimate, With a Specified Tolerable Error, the Average for Characteristic of a Lot or Process
  • ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
  • ASTM E456 Standard Terminology for Relating to Quality and Statistics
  • ASTM E6 Standard Terminology Relating to Methods of Mechanical Testing

ASTM D7250/D7250M-20 history

Standard Practice for Determining Sandwich Beam Flexural and Shear Stiffness


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