耦合损伤时相关疲劳失效模型的有限元实现

&nbsp; 罗艳; 高庆

doi:10.3969/j.issn.0258-2724.2012.02.010

耦合损伤时相关疲劳失效模型的有限元实现

doi: 10.3969/j.issn.0258-2724.2012.02.010

,
罗艳¹,
高庆²

基金项目:

国家自然科学基金资助项目（41002110）　

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出版历程
- 收稿日期: 2010-12-03
- 修回日期: 2011-04-07
- 刊出日期: 2012-04-25

THE DAMAGE-COUPLED TIME-DEPENDENT MULTIAXIAL THEORETICAL MODEL: II. THE ENGINEERING APPLICABILITY OF FINITE ELEMENT IMPLEMENTATION

GAO Qing,

摘要

摘要: 为了将耦合损伤时相关疲劳失效模型移植到有限元软件ABAQUS中,使其能够对钎料合金简单结构试样的非比例多轴低周疲劳失效行为进行有限元模拟,通过ABAQUS提供的材料子程序UMAT对其进行了有限元实现,并通过典型算例对简单结构试样在非比例加载路径下的低周疲劳失效行为进行了有限元数值模拟.与相同加载路径下的实验结果比较表明:移植的模型能够较好地模拟钎料结构试样的载荷响应及载荷随循环周次的衰减,同时也能较好地预测其低周疲劳寿命,说明该疲劳失效模型的有限元移植是合理有效的.
- 有限元实现 /
- 损伤 /
- 时相关变形 /
- 疲劳失效模型
Abstract: A damaged-coupled time-dependent fatigue failure model was implemented into the finite element code ABAQUS via user material subroutine UMAT, and typical numerical examples were used to simulate the low cycle fatigue (LCF) failure behavior of 63Sn-37Pb solder alloy structural specimen under nonproportional loading paths. The comparison with the experimental results under the same loading paths shows that the implemented constitutive model can simulate the load response and the load decaying with cyclic number, and predict LCF life of the solder structural specimen well. Therefore, the finite element implementation of fatigue failure model is reasonable and effective.
- finite element implementation /
- damage /
- time-dependent deformation /
- fatigue failure model

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参考文献(4)

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文章访问数: 1758
HTML全文浏览量: 73
PDF下载量: 542
被引次数: 0

耦合损伤时相关疲劳失效模型的有限元实现

doi: 10.3969/j.issn.0258-2724.2012.02.010

计量

出版历程

THE DAMAGE-COUPLED TIME-DEPENDENT MULTIAXIAL THEORETICAL MODEL: II. THE ENGINEERING APPLICABILITY OF FINITE ELEMENT IMPLEMENTATION

计量

出版历程

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