| 小范围屈服条件下裂尖塑性区统一解 |
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| 引用本文： | 强洪夫,鲁宁,刘兵吉.小范围屈服条件下裂尖塑性区统一解[J].机械工程学报,1999,35(1):34-38. |
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| 作者姓名： | 强洪夫 鲁宁 刘兵吉 |
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| 作者单位： | 西安交通大学建筑工程与力学学院;二炮工程学院 |
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| 摘 要： | 采用俞茂宏双剪统一屈服准则求解了Ⅰ、Ⅱ、Ⅲ型裂纹在小范围屈服条件下的塑性区形状与大小的统一解答。已有Tresca准则、Miss准则的解答均是该解答的特例或线性逼近，该解答可以适合于多种工程材料，具有普遍性和适用性，从得出的解析解和图形分析中可以得出一些新的结论。
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| 关 键 词： | 裂纹 屈服准则 双剪切 塑性区 |
UNIFIED SOLUTIONS OF CRACK TIP PLASTIC ZONE UNDER SMALL SCALE YIELDING |
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| Qiang Hongfu,Lu Ning,Liu Bingji.UNIFIED SOLUTIONS OF CRACK TIP PLASTIC ZONE UNDER SMALL SCALE YIELDING[J].Chinese Journal of Mechanical Engineering,1999,35(1):34-38. |
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| Authors: | Qiang Hongfu Lu Ning Liu Bingji |
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| Affiliation: | Xi'an Jiaotong University The Secondary Artilary Engineering College |
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| Abstract: | Based on M. H. Yu unified criterion, the unified solutions to the shapes and sizes of mode Ⅰ,Ⅱ,Ⅲ crack tip plastic zone under small scale yielding (S. S. Y. ) are obtained. The former solutions to this problem by Tresca criterion and Von Mises criterion are only the special cases or linear proximity. The -solutions offered has universal applications to different kinds of materials. From the analysis solutions and diagrams, some new conclusions could be obtained. |
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| Keywords: | Crack Plastic zone Yield criterion Twin shear |
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