| 裂纹长度对高强度钢应力强度因子的影响 |
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| 引用本文： | 张德驺,肖一九. 裂纹长度对高强度钢应力强度因子的影响[J]. 哈尔滨工程大学学报, 1990, 0(2) |
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| 作者姓名： | 张德驺 肖一九 |
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| 作者单位： | 哈尔滨船舶工程学院机械工程系(张德驺)，哈尔滨船舶工程学院机械工程系(肖一九) |
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| 摘 要： | 用三点弯曲试件对不同a/w值的高强度钢38CrMoA的应力强度因子值k_(IC)进行了试验研究.试验结果表明,高强度钢38CrMoAl的临界应力强度因子值,随a/w值之减小而增加,但增加的程度较低强度大塑性材料少,其浅裂纹(a/w=0.1)时的K_(IC)值为深裂纹(a/w=0.5)时的1.1倍.
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| 关 键 词： | 应力强度因子 裂纹长度 高强度钢 |
Effect of Crack Length on Stress Intensity Factor Value in a High Strength Steel 38 CrMoAl |
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| Zhang Dezou, Xiao Yijiu. Effect of Crack Length on Stress Intensity Factor Value in a High Strength Steel 38 CrMoAl[J]. Journal of Harbin Engineering University, 1990, 0(2) |
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| Authors: | Zhang Dezou Xiao Yijiu |
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| Affiliation: | Dept. of Mechanical Eng. |
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| Abstract: | The effect of the ratio a/W on K_I ~C value in a high strength steel 38Cr-MoAl has been studied by using three-point bend specimens with shallow and deep notches.It is shown that the values of K_I ~C for specimens with shallow notches are larger than those of deep notches, and when a/W=0.1, the K_I ~C value is about 1.1 times larger than the K_I ~C value when a/W=0.5. |
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| Keywords: | stress intensity factor crack length high strength steel |
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