Core Shear ASTM C273

Shear Strength and Modulus Sandwich Cores, identification of compression or tension characteristics of composites by ASTM C273

This test method is used to determine core shear properties of a sandwich construction material using loading plates bonded to the outer surfaces or skins (facesheets). The test is applicable for either continuous (foams) or discontinues bonding surfaces (honeycomb).

Test procedure: The bonded loading plates are either pulled in tension or pushed in compression on a Universal Test Machine in order to shear the material within 3 to 6 minutes. Intertek currently only has the capabilities to perform the compression method.

Specimen size: Intertek currently has the capabilities to test specimens 2” wide and up to 1” thick.

Available data from ASTM C273: 

  • Ultimate core shear strength
  • 2% offset shear stress
  • Engineering shear strain
  • Core shear modulus
  • Failure type

**Please note that this test description is intentionally generic in nature and aimed at providing a descriptive summary to enhance test understanding. Standards can be obtained from appropriate standard authorities.

 

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