本文選題：包辛格效應　切入點：硬化模型　出處：《鍛壓技術》2017年04期

【摘要】：基于Voce各向同性硬化模型和Armstrong-Frederic隨動硬化模型,建立了一個考慮包辛格效應影響的混合硬化模型,并通過CR4鋼板的拉壓循環(huán)實驗驗證了該混合硬化模型的準確性。將該混合硬化模型引入Stoughton等效拉深筋阻力模型,替換原有的各向同性硬化模型,考慮包辛格效應的影響對該等效拉深筋阻力模型進行了改進。利用專門設計的拉深筋阻力測定裝置,針對矩形拉深筋和半圓形拉深筋,分別獲取了不同幾何結構參數(shù)下的拉深筋阻力,經實驗驗證,改進后的等效拉深筋模型能夠有效地提高拉深筋阻力的計算精度。
[Abstract]:Based on the Voce isotropic hardening model and the Armstrong-Frederic servo-hardening model, a hybrid hardening model considering the effect of Bauschinger effect is established. The accuracy of the mixed hardening model is verified by the pull-compression cycle experiment of CR4 steel plate.The hybrid hardening model is introduced into the Stoughton equivalent drawing bar resistance model to replace the original isotropic hardening model and the effect of Bauschinger effect is considered to improve the equivalent drawing reinforcement resistance model.By using the specially designed device for measuring the resistance of deep drawing tendons, the drag forces of drawing bars with different geometric parameters are obtained for rectangular and semicircular deep drawn bars, which are verified by experiments.The improved equivalent drawing reinforcement model can effectively improve the accuracy of the calculation of the drag of the drawing reinforcement.
【作者單位】： 上海交通大學國家模具CAD工程研究中心;
【基金】：國家自然科學基金資助項目(51275297)
【分類號】：TG386.32

【參考文獻】

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本文編號：1706483