Creep of a thin anisotropic circular plate containing a circular hole at the centre

An analysis to study the creep behaviour of a circular plate with a circular hole at the centre under uniform stretching at the boundary has been carried out. The material of the plate is assumed to be anisotropic and homogeneous. The analysis is based on a time-hardening law and the stresses and strains have been calculated using procedure of successive approximations. All the results have been obtained in a non-dimensional form and compared with the corresponding values for the isotropic case. The redistributed stress and the ultimate stress and strain distributions are found very much different from the initial distributions. At the outer boundary of the plate the effect of anisotropy on stress and strain is negligibly small, whereas at the inner boundary this effect is quite pronounced. All the important results obtained in this study have been presented graphically.