The Response of Mechanically Anisotropic Cylindrical Cells to Multiaxial Stress

Expressions for the various types of strain in a thin walled cylindrical cell resulting from internal pressure, are derived for the general case where the cell axis does not correspond to one of the axes of mechanical symmetry. It is shown that whereas the longitudinal extension of the cell is much less than that due to an equivalent uniaxial longitudinal stress, the twisting of one end of the cell with respect to the other due to the difference between the directions of the mechanical and cell axes, is some three times greater.