The spherical vessel with anisotropic creep properties considering large strains (Q1148132)

The authors study the title problem for thick walled vessels. It is found that creep strain varies with varying anisotropy of the material. Also, it is found that, as with isotropic materials, the creep rates increase with time even though the steady state creep law is used in the analysis. Finally, the authors observe that for purposes of optimal design, the creep strength in the tangential direction must exceed that in the radial direction. The paper is well written. It should be of interest and use to both theoreticians and practitioners working with anisotropic materials.