A. The ratio of volumetric stress to volumetric strain
B. The ratio of direct stress to volumetric strain
C. The ratio of shear stress to shear strain
D. The ratio of direct stress to direct strain
A. The ratio of volumetric stress to volumetric strain
B. The ratio of direct stress to volumetric strain
C. The ratio of shear stress to shear strain
D. The ratio of direct stress to direct strain