| 非均质焊接接头裂纹尖端塑性区 |
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| 引用本文： | 康继东,霍立兴.非均质焊接接头裂纹尖端塑性区[J].机械强度,1996,18(3):49-52. |
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| 作者姓名： | 康继东 霍立兴 |
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| 作者单位： | 南京航空航天大学，天津大学 |
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| 摘 要： | 采用平面应力弹塑性大应变有限元法分析了非均质焊接接头裂纹尖端塑性区的扩展规律，指出在非均质焊接接头中存在着塑性变形的不同时性与不均匀性，且焊缝金属强度匹配、材料本构关系以及裂纹长度（韧带长度）对塑性区的发生发展均有重要影响。
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| 关 键 词： | 焊接接头 非均质性 塑性区 裂纹 |
PLASTIC ZONE IN THE VICINITY OF CRACK TIP IN HETEROGENEOUS WELDED JOINTS |
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| Kang Jidong,Huo Lixing, Zhang Yufeng.PLASTIC ZONE IN THE VICINITY OF CRACK TIP IN HETEROGENEOUS WELDED JOINTS[J].Journal of Mechanical Strength,1996,18(3):49-52. |
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| Authors: | Kang Jidong Huo Lixing Zhang Yufeng |
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| Abstract: | The spread of plastic zone in the vicinity of crack tip in heterogeneous welded joints is investigatedby the plane stress elastic-plastic large deformation finite element method. It is pointed out that weld-matching inyield stress,material constitutive law and crack size and ligament size have significantly effects on the spread of theplastic zone. |
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| Keywords: | welded joint heterogepeity plastic zone |
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