發(fā)布時(shí)間：2018-04-03 18:53

  本文選題：包辛格效應(yīng)　切入點(diǎn)：硬化模型　出處：《鍛壓技術(shù)》2017年04期

【摘要】：基于Voce各向同性硬化模型和Armstrong-Frederic隨動(dòng)硬化模型,建立了一個(gè)考慮包辛格效應(yīng)影響的混合硬化模型,并通過(guò)CR4鋼板的拉壓循環(huán)實(shí)驗(yàn)驗(yàn)證了該混合硬化模型的準(zhǔn)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(yīng)的影響對(duì)該等效拉深筋阻力模型進(jìn)行了改進(jìn)。利用專門設(shè)計(jì)的拉深筋阻力測(cè)定裝置,針對(duì)矩形拉深筋和半圓形拉深筋,分別獲取了不同幾何結(jié)構(gòu)參數(shù)下的拉深筋阻力,經(jīng)實(shí)驗(yàn)驗(yàn)證,改進(jìn)后的等效拉深筋模型能夠有效地提高拉深筋阻力的計(jì)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(xué)國(guó)家模具CAD工程研究中心;
【基金】：國(guó)家自然科學(xué)基金資助項(xiàng)目(51275297)
【分類號(hào)】：TG386.32

【參考文獻(xiàn)】

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本文編號(hào)：1706483