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Numerical Studies of Estimation of Fracture Parameters for Mismatched Welded Joints with HAZ Cracks 被引量：1

Numerical Studies of Estimation of Fracture Parameters for Mismatched Welded Joints with HAZ Cracks
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摘要 An idealized tri-material assumption is established to describe the constitutive relationship of mismatched welded joints by considering the influence of heat affected zone（HAZ）.The fracture parameters Jand C＊are estimated for mismatched welded joints with HAZ cracks by finite element analysis with ABAQUS.A middle crack tension（M（T））specimen is utilized in the analysis for different material properties and geometries of the weldment.The influence of mechanical property and geometry on the fracture parameters Jand C＊of the specimen is discussed for the welded joints with HAZ crack.The results suggest that the HAZ property is a significant factor in the estimation of Jand C＊for the mismatched welded joint with HAZ crack. An idealized tri-material assumption is established to describe the constitutive relationship of mismatched welded joints by considering the influence of heat affected zone（HAZ）.The fracture parameters Jand C＊are estimated for mismatched welded joints with HAZ cracks by finite element analysis with ABAQUS.A middle crack tension（M（T））specimen is utilized in the analysis for different material properties and geometries of the weldment.The influence of mechanical property and geometry on the fracture parameters Jand C＊of the specimen is discussed for the welded joints with HAZ crack.The results suggest that the HAZ property is a significant factor in the estimation of Jand C＊for the mismatched welded joint with HAZ crack.
作者 Kun LING Zheng-dong WANG Fu-zhen XUAN
机构地区 Key Laboratory of Pressure Systems and Safety
出处 《Journal of Iron and Steel Research(International)》 SCIE EI CAS CSCD 2015年第9期846-851,共6页 钢铁研究学报（英文版）
基金 Sponsored by National High Technology Research and Development Program of China(2012AA040106)
关键词 mismatched welded joint tri-material assumption heat affected zone（HAZ） J-integral C＊parameter mismatched welded joint tri-material assumption heat affected zone（HAZ） J-integral C＊parameter
分类号 TG407 [金属学及工艺—焊接] TF777.6 [冶金工程—钢铁冶金]
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Journal of Iron and Steel Research(International)
2015年 第9期

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