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首页> 外文会议>International Conference on Advanced Nondestructive Evaluation >Analysis of Fatigue Crack Growth in Weld Specimen Using Three-Dimensional Cohesive Zone Model
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Analysis of Fatigue Crack Growth in Weld Specimen Using Three-Dimensional Cohesive Zone Model

机译：三维粘性区模型分析焊接试样的疲劳裂纹生长

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摘要

Three-dimensional cohesive zone model was used to simulate the fatigue crack growth of a weld specimen. Damage accumulation was accounted for using a constitutive model. A surface along which the fatigue crack would grow was assumed along the symmetric plane of the specimen and the cohesive elements were applied on the surface. Tensile tests of weld and parent specimens were simulated by the finite element method. Results of fatigue crack growth for the weld and parent specimens were compared and the effect of changing a constitutive parameter on the fatigue crack growth behavior was also checked.
机译：三维凝聚区模型用于模拟焊接标本的疲劳裂纹生长。使用本构模型计算损坏累积。沿着样本的对称平面假设疲劳裂纹生长的表面，并且在表面上施加内聚元件。通过有限元法模拟焊缝和母版本的拉伸试验。还检查了焊缝和母体样本的疲劳裂纹生长的结果，还检查了改变疲劳裂纹生长行为对疲劳裂纹生长行为的影响。

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