| 圆形截面杆纯弯曲回弹弯矩的计算 |
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| 引用本文： | 刘金武,文彬,贺永祥.圆形截面杆纯弯曲回弹弯矩的计算[J].湖南工程学院学报(自然科学版),2001,11(2):30-33. |
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| 作者姓名： | 刘金武 文彬 贺永祥 |
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| 作者单位： | 湖南工程学院机械工程系,湖南,湘潭,411101 |
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| 摘 要： | 分析了圆形截面梁（杆）弹塑性纯弯曲回弹应力应变的变化过程，利用回弹应力应变函数、平衡条件和变形协调条件求出回弹曲率（公式4]及回弹弯矩（公式5]）。发现经典纯弯曲理论把塑性弯曲时回弹弯矩定义成弹塑性弯矩，在回弹计算时存在较大理论误差。
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| 关 键 词： | 弹塑性 纯弯曲 回弹曲率 回弹弯矩 圆形截面杆 |
| 文章编号： | 1671-119X(2001)02-0030-04 |
| 修稿时间： | 2000年6月20日 |
Calculation of Re-spring Bending Moment for Beams of Circular Section |
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| LIU Jin-wu,WEN Bin,HE Yong-xiang.Calculation of Re-spring Bending Moment for Beams of Circular Section[J].Journal of Hunan Institute of Engineering(Natural Science Edition),2001,11(2):30-33. |
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| Authors: | LIU Jin-wu WEN Bin HE Yong-xiang |
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| Abstract: | This paper analyzes the changing process of the stress and the strain of pure plastic bending re-spring for beams of circular section.According to the function on stress and strain of re-spring,the condition of the balance of force and the coordination of deform,calculating for mulas ?of re-spring curve and re-spring bending moment are inferred.The result shows that there is more tolerance of theory between the formulaand the method of taking elastic-plastic bending moment as re-spring bending moment according to the classically pure bending theory. |
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| Keywords: | elastic-plastic pure bending curve of re-spring bending moment of re-spring |
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