Abstract:An approach for estimating critical buckling strain of pipe subjected plastic bending is established in the present paper. A rigid -perfectly plastic material model and cross section ovalization of pipe during bending are employed for the approach. The energy rates of the ovalised pipe bending and the cross section ovalising are proposed firstly. Furthermore, these energy rates are combined to perform the buckling analysis of pipe bending, an estimation formula of critical buckling strain for pipe subjected pl… Show more
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