Double Block Shear Test for Foil Honeycomb Cores: Re‐examination of This Method as Means of Measuring the Shear Modulus Available to Purchase

BECAUSE of the apparently low moduli obtained from it, the double block shear test has recently been the subject of some criticism. The purpose of this paper is to re‐examine the double block shear test as a means of measuring the shear stiffness of foil honeycomb cores because of the advantages in simplicity it has over other methods. The two most widely used methods of testing are shown in FIG. 1, they are fundamentally different and illustrate the two approaches to honeycomb foil testing.