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| 当量屈服强度法在双层管液压成形中的应用 | |
| 引用本文： | 张正潮,刘富君,郑津洋,郭小联,朱国辉,徐铭泽.当量屈服强度法在双层管液压成形中的应用[J].压力容器,2008,25(8):20-24. |
| 作者姓名： | 张正潮 刘富君 郑津洋 郭小联 朱国辉 徐铭泽 |
| 作者单位： | 1. 浙江省特种设备检验研究院,浙江,杭州,310020 2. 浙江大学,化工机械研究所,浙江,杭州,310027 3. ARC压力容器有限公司,上海,201600 |
| 摘 要： | 当量屈服强度法在工程中广泛应用。双层管液压成形理论分析中，以内层管真实应力应变曲线的计算过程相当复杂，很难得到准确的解析解且难以满足工程的需要。在总结分析前人工作的基础上，提出了适用于双层管液压成形的当量屈服强度法，给出了确定当量屈服强度的具体步骤。研究结果表明：应用该方法能有效地提高理论计算的精度，与试验值符合良好，计算数据与试验值之间的最大误差为1.02％，为液压成形双层管的工业生产提供较为科学的依据。 |
| 关 键 词： | 双层管 当量屈服强度 应力应变曲线 胀合液压力 液压成形 |
Application of Equivalent Yield Strength Method to Double-layered Tube during Hydraulic Forming |
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| ZHANG Zheng-chao,LIU Fu-jun,ZHENG Jin-yang,GUO Xiao-lian,ZHU Guo-hui,XU Ming-ze.Application of Equivalent Yield Strength Method to Double-layered Tube during Hydraulic Forming[J].Pressure Vessel Technology,2008,25(8):20-24. | |
| Authors: | ZHANG Zheng-chao LIU Fu-jun ZHENG Jin-yang GUO Xiao-lian ZHU Guo-hui XU Ming-ze |
| Affiliation: | ZHANG Zheng - chao , LIU Fu - jun , ZHENG Jin - yang, GUO Xiao - lian , ZHU Guo - hui, XU Ming - ze (1. Zhejiang Provincial Special Equipment Inspection and Research Institute, Hangzhou 310020, China;2. Research Institute of Chemical Mechanical Engineering, Zhejiang University, Hangzhou 310027, China;3. ARC Pressure Vessel Corporation, Shanghai 201600, China) |
| Abstract: | The equivalent yield strength method has been applied widely in engineering. In the theoretical analysis of double - layered tube hydro - forming, the calculating process is very complicated and difficult not to obtain accurate analytical solution and meet engineering application with the actual stress - strain curve of inner tube. Based on the analysis and generalization of former research, the equivalent yield strength method suitable for hydro - forming of double - layered tubes is put forward, and the concrete approach to determine the equivalent yield strength is given. The results show that the range of hydro - expanding pressure in theory is both in good agreement with that in the experiment with a maximum error of 1.02%. The method can increase the precise of theory results and provide theoretical references to engineering applications. |
| Keywords: | double - layered tube equivalent yield strength stress - strain curve hydro - expanding pressure hydraulic forming |
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