【摘要】 基于对曲板弹塑性弯曲的理论分析，提出了适于板条反复成形应力分析的近似方法，给出了残余应力的计算公式，并对板条反复纯弯曲变形过程的残余应力进行了分析。结果表明，适当选择反复成形的加载路径，可使残余应力明显降低。更多还原

【Abstract】 An approximate method suitable for the stresses analysisin sheet metal alternate forming is presented, based on elashcPlastic bending theory of cure plate. The formulations to calculateresidual stresses is given and the residual stresses in alternate Pbending of Plate strip is analyzed by the Presented method. Theresult shows that if the loading path is chosen properly, the residualstresses will be reduced obviously.更多还原