Strain-hardening effect on critical strain assessment of pipe plastic bending at buckling

M. Zheng & Z.M. Li
In the current paper, the characteristic factor is extracted from the analytical solution of the bending moment for a rectangular strainhardening beam first. Thereafter, the characteristic factor β is transplanted into the previously proposed assessment of the critical buckling strain for rigid-perfectly plastic bending pipe by analogy method, thus an extended expression of the critical buckling strain for a pipe plastic bending including strain-hardening effect is developed. Moreover, available test data is employed to check...
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