Vane shear apparatus can assess the shear strength of various materials. A vane with a blade is the main component of the apparatus, and it is introduced into the substance to be evaluated. The force necessary to prevent the vane from rotating is then measured as the vane is turned at a steady speed. The force necessary to prevent the vane from rotating is then used to compute the material's shear strength. The vane shear apparatus, which is especially helpful for soils with low shear strength, tests the shear strength of cohesive soils.