β Scribed by Roshdy S. Barsoum
No coin nor oath required. For personal study only.
A new method for elasticβplastic analysis of pressure vessels subject to cyclic mechanical and thermal loading is proposed. The method is shown to lead to a highly convergent solution when applied in conjunction with Prager's complete kinematic hardening rule. The plastic strain increments are written in terms of the total strains, thus leading to a consistent formulation when the analysis is done by an incremental iterative process.
The proposed method is applied to the analysis of a long cylinder in the state of generalized plane strain and subject to cyclic loading. Cyclic plasticity and creep are considered in one of the problems analysed. The finite difference method is used in the solution of the compatibility and equilibrium equations. It is shown that the computation time using the proposed method is very small compared to other techniques.
π SIMILAR VOLUMES
A new method for assay of cyclic AMP phosphodiesterase (EC 3.1.4.17) has been developed based on the observation that a mixture of cyclic AMP and AMP can be resolved on a column of florisil (activated magnesium silicate) at pH 7.0. The cyclic nucleotide is retained by the silicate and the AMP which