TEST METHOD FOR EVALUATION OF SHEAR MODULUS AND MODULUS OF ELASTICITY OF LAMINATED ANISOTROPIC COMPOSITE MATERIALS.

In one test, a ring is simply supported at two diametrically opposite supports and subjected to two diametrically opposite concentrated loads normal to the plane of the ring and located 90 degree from the supports. The second test employs a split ring. Each end of the ring is subjected to a concentrated load normal to the plane of the ring. By conducting these two tests and measuring the normal deflections corresponding to the applied loads, shear modulus and modulus of elasticity of the ring can be determined from the formulas derived in the paper.