| 三点弯曲试样动应力强度因子求解的振动分析方法 |
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| 引用本文： | 姜风春, 刘瑞堂, 张晓欣. 三点弯曲试样动应力强度因子求解的振动分析方法[J]. 工程力学, 2002, 19(4): 81-84. |
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| 作者姓名： | 姜风春 刘瑞堂 张晓欣 |
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| 作者单位： | 哈尔滨工程大学, 哈尔滨, 150001 |
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| 摘 要： | 采用振动分析方法,对冲击载荷作用下三点弯曲试样的动态响应进行了研究。通过对试样刚度的求解,把转动惯性和剪切变形的影响引入到动应力强度因子的计算中。动态有限元的分析结果表明,本文建立的动应力强度因子公式具有较好的计算精度。
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| 关 键 词： | 动应力强度因子 振动分析 转动惯性 剪切变形 |
| 文章编号： | 1000-4750(2002)04-081-04 |
| 收稿时间： | 2000-11-20 |
| 修稿时间： | 2001-06-30 |
VIBRATION ANALYSIS METHOD USED FOR DETERMINING THE DYNAMIC STRESS INTENSITY FACTOR OF THREE-POINT BENDING SPECIMEN |
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| JIANG Feng-chun, LIU Rui-tang, ZHANG Xiao-xin. VIBRATION ANALYSIS METHOD USED FOR DETERMINING THE DYNAMIC STRESS INTENSITY FACTOR OF THREE-POINT BENDING SPECIMEN[J]. Engineering Mechanics, 2002, 19(4): 81-84. |
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| Authors: | JIANG Feng-chun LIU Rui-tang ZHANG Xiao-xin |
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| Affiliation: | Harbin Engineering University, Harbin 150001 |
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| Abstract: | The dynamic response of the three-point bending specimen has been investigated. The effect of rotatory inertia and shear deformation on the stress intensity factor has been taken into account by means of evaluating the specimen stiffness. The results of dynamic finite element analysis indicate that the precision of the dynamic stress intensity factor is satisfactory. |
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| Keywords: | dynamic stress intensity vibration analysis rotator inertia shear deformation |
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