ASTM C393 Sandwich Construction Core Shear Properties

Flexural test on flat sandwich constructions, by beam flexure, is done by ASTM C393 test method. Conditioned samples are tested in a 3-point loading fixture on a Universal Test Machine. Core Shear Ultimate Stress; Core Shear Yield Stress; Facing Stress, and the Failure mode are determined.... Read More

  • Average 30% Cost

  • 100% Confidentiality

  • Free, No-obligation

  • 100% Customer



    Core Shear Properties by ASTM C393 test determines the flexural strength, core shear strength, and facing compressive and tensile strengths in the direction the core is positioned in structural construction. The core content types that are evaluated include continuous bonding surfaces (such as balsa wood and foams) and discontinuous bonding surfaces (such as honeycomb).

    Test Procedure:

    Conditioned samples, for the ASTM C393 test, are installed into a 3-point loading fixture on a Universal Test Machine. Then, the samples are initiated, at a specified grip separation significant enough to produce failure within 3 to 6 minutes. The standard speed of the ASTM C393 test is 6 mm/min (0.25 inch/min). The standard loading setup is a 3-point configuration with a 150 mm (6.0 inches) support span. 

    Specimen size:

    Five rectangular samples, 75 mm (3.0 inches) 200 mm (8.0 inches) are tested at thickness during the determination of Core Shear Properties of Sandwich Constructions by ASTM C393.


    From the 3-point loading ASTM C393 test, the following calculations are done

    Core Shear Ultimate Stress
    Core Shear Yield Stress
    Facing Stress
    Failure type/mode


    Hence, ASTM C393 test method covers determination of the core shear properties of flat sandwich constructions subjected to flexure in such a manner that the applied moments produce curvature of the sandwich facing plane.


    Core Materials Testing Services


    A variety of microscopy and spectroscopy tools available for precise measurements from the nano to the meter scale.

    Metrology Testing Services POPULAR TESTS:

    TEM SIMS Profilometry

    Materials Testing

    ASTM and ISO standard and custom chemical, mechanical, thermal, corrosion tests, etc. for all materials metals, ceramic or polymers.

    Materials Testing Services POPULAR TESTS:

    Nondestructive Testing Electrical Testing Chemistry Analysis

    Product Testing

    Thousands of tests for product quality and reliability under heat, humidity, temperature shock, vibration, drop, electrostatic discharge.

    Product Testing Services POPULAR TESTS:

    Vibration Testing Humidity Testing Accelerated Aging

    Looking for Material Testing?

    We have already delivered 10000+ Material Test results to top companies

      Send us a request

        Process for testing
          STEP 01

          You share material and testing requirements with us

          STEP 02

          You ship your sample to us or arrange for us to pick it up.

          STEP 03

          We deliver the test report to your email.

          Let’s work together!

          Share your testing requirements with us and we will be happy to assist you.

          ddd Just share your testing requirements and leave the rest on us!
          • Free, no-obligation consultation
          • Guaranteed confidentiality
          • Quick turnaround time
          • Hassle-free process


            Let us combine our capabilities to achieve success!!

              idea icon
              Want to connect with an expert before you leave?