Creep Problems in Structural Members

alloy anisotropy applied approximate arbitrary assume axes axis bending boundary conditions calculations complex stress components compression consequently consider const constant contravariant coordinates corresponding covariant creep curves creep deformation creep rate creep tests creep theory curvature deflection deformation theory denote depends determined deviator differential dimensionless disc displacements equation of equilibrium example experimental expression failure follows forces formula function given Hooke's law initial integral invariant linear material method metric tensor numerical obtain octahedral parameter plane plastic deformation plate power creep power creep law power law problem Q₁ quantity radius rate of deformation relationship relaxation shear shell shown in fig solution specimen steady-state creep stress tensor surface of loading t₁ tangential stress temperature tension theory of elasticity theory of plasticity tion torsion type theory variable variational vector viscoelastic work-hardening zero ӘФ