| 用嵌入螺柱法测量金属体内塑性应变分布 |
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| 引用本文： | 苑世剑,张吉,何祝斌,李锋,王仲仁.用嵌入螺柱法测量金属体内塑性应变分布[J].金属学报,2007,43(4):363-366. |
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| 作者姓名： | 苑世剑 张吉 何祝斌 李锋 王仲仁 |
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| 作者单位： | 哈尔滨工业大学材料科学与工程学院,哈尔滨,150001 |
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| 摘 要： | 为解决传统塑性应变测试方法无法有效地测量体积成形中金属体内应变分布的问题,提出了一种测量金属塑性应变的新方法.其原理是将工件加工成内部嵌入螺柱的组合件,对组合件进行塑性变形,测量变形后组合件内部的螺纹界面的变形,进而计算相应位置上的应变.该方法可以定量给出变形体内部的应变分布,与传统的坐标网格法相比,具有不需要剖分工件、不改变应力状态的优点.该方法可应用于镦粗、挤压、模锻等塑性变形工艺中金属变形流动行为的研究.
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| 关 键 词： | 嵌入螺柱法 塑性变形 应变测量 螺柱 测量变形 金属 塑性变形 应变分布 BODY PLASTIC DEFORMATION METAL STRAIN DISTRIBUTION MEASURING 研究 变形流动行为 变形工艺 模锻 挤压 镦粗 应用 应力状态 剖分 坐标网格法 |
| 文章编号： | 0412-1961（2007）04-0363-04 |
| 收稿时间： | 2006-08-01 |
| 修稿时间： | 2006-08-012006-11-14 |
SCREW METHOD FOR MEASURING STRAIN DISTRIBUTION IN METAL PLASTIC DEFORMATION BODY |
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| YUAN Shijian,ZHANG Ji,HE Zhubin,LI Feng,WANG Zhongren.SCREW METHOD FOR MEASURING STRAIN DISTRIBUTION IN METAL PLASTIC DEFORMATION BODY[J].Acta Metallurgica Sinica,2007,43(4):363-366. |
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| Authors: | YUAN Shijian ZHANG Ji HE Zhubin LI Feng WANG Zhongren |
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| Affiliation: | School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001 |
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| Abstract: | A new method, screw method, for strain measurement was advanced to obtain the strain distribution inside metal plastic deformation body. Through implanting bolts into the specimen and measuring the deformation of the blots, the strain on the screw interface can be calculated quantitatively. Contrast to the traditional mesh grid method, the screw method does not split the specimen and can be used for open forging without changing the stress state. |
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| Keywords: | screw method plastic deformation strain measurement |
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