| 金属拉伸试验方法的关键及其对策 |
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| 引用本文： | 蔡增伸,王海勇,王从贤. 金属拉伸试验方法的关键及其对策[J]. 实验力学, 2000, 15(2): 224-232 |
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| 作者姓名： | 蔡增伸 王海勇 王从贤 |
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| 作者单位： | 浙江工业大学,杭州,310032 |
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| 基金项目： | 浙江省科技厅资助项目 |
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| 摘 要： | 本文首先指出金属拉伸试验方法的关键问题是试验时的应力速率及应变速率控制，首次提出应用传感器及计算机技术，以一只比例节流阀为控制器构成旁路节流式微机控制电液系统，具有压力和速度双重控制功能，在液压式万能材料试验机上获得良好的应力速率及应变速率控制的试验结果，为我国液压材料试验机功能扩展和开发新一代机型奠定基础，以适应２１世纪静强度检测的需要。
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| 关 键 词： | 金属 拉伸试验 应力 应变速率 试验机 |
| 文章编号： | 1001-4888(2000)02-0224-09 |
| 修稿时间： | 1999-02-06 |
The Key Problem in Tensile Testing for Metallic Materials and Its Countetmeasure |
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| CAI Zeng-shen,WANG Hai-yong,WANG Cong-xian. The Key Problem in Tensile Testing for Metallic Materials and Its Countetmeasure[J]. Journal of Experimental Mechanics, 2000, 15(2): 224-232 |
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| Authors: | CAI Zeng-shen WANG Hai-yong WANG Cong-xian |
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| Affiliation: | CAI Zeng-shen,WANG Hai-yong,WANG ConH-xian;(Zhejiang University of Technology, Hangzhou 310032) |
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| Abstract: | The key problem in tensile testing for metallic materials is the controlling of stress rate and strain rote. By using transducer and computer technique,a by-pass throttle type electric-hydraulic system with only one throttle valve is presented for controlling both the pressure and the speed in a traditional hydraulic universal testing machine.Its application is successful.The system may serve as a foundation for developing new types of testing machine. |
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| Keywords: | metallic material tensile testing stress rate strain rate testing machine |
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