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硅酸铝短纤维增强AZ91D镁基复合材料蠕变力学行为的微观数值模拟

田君 陈洲泉 钟守炎

田君, 陈洲泉, 钟守炎. 硅酸铝短纤维增强AZ91D镁基复合材料蠕变力学行为的微观数值模拟[J]. 应用数学和力学, 2014, 35(5): 523-532. doi: 10.3879/j.issn.1000-0887.2014.05.006
引用本文: 田君, 陈洲泉, 钟守炎. 硅酸铝短纤维增强AZ91D镁基复合材料蠕变力学行为的微观数值模拟[J]. 应用数学和力学, 2014, 35(5): 523-532. doi: 10.3879/j.issn.1000-0887.2014.05.006
TIAN Jun, CHEN Zhou-quan, ZHONG Shou-yan. Micro Numerical Simulation of Creep Mechanical Behavior of Aluminum Silicate Short Fiber-Reinforced AZ91D Magnesium Matrix Composite[J]. Applied Mathematics and Mechanics, 2014, 35(5): 523-532. doi: 10.3879/j.issn.1000-0887.2014.05.006
Citation: TIAN Jun, CHEN Zhou-quan, ZHONG Shou-yan. Micro Numerical Simulation of Creep Mechanical Behavior of Aluminum Silicate Short Fiber-Reinforced AZ91D Magnesium Matrix Composite[J]. Applied Mathematics and Mechanics, 2014, 35(5): 523-532. doi: 10.3879/j.issn.1000-0887.2014.05.006

硅酸铝短纤维增强AZ91D镁基复合材料蠕变力学行为的微观数值模拟

doi: 10.3879/j.issn.1000-0887.2014.05.006
基金项目: 广东省自然科学基金(10151170003000002)
详细信息
    作者简介:

    田君(1968—),男,湖南人,副教授,博士,硕士生导师(通讯作者. Tel: +86-769-22861281; E-mail: 841608534@qq.com)

  • 中图分类号: O346;TG113

Micro Numerical Simulation of Creep Mechanical Behavior of Aluminum Silicate Short Fiber-Reinforced AZ91D Magnesium Matrix Composite

  • 摘要: 研究了硅酸铝短纤维增强AZ91D镁基复合材料蠕变力学行为的细观机理,采用单胞模型结合有限元软件ABAQUS进行分析.有限元分析表明,纤维和基体中的应力应变大致为分段均匀分布,纤维远比基体承担的等效Mises应力大,基体和纤维的界面处存在较大的应力集中.复合材料的蠕变断裂经历3个微观进程,随着蠕变变形的增大,短纤维通过多处损伤、断裂和多重断裂来承担和传递载荷而加强了基体的蠕变抗力,弱界面产生的微裂纹不断扩大导致复合材料抗蠕变能力急剧下降而断裂.
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出版历程
  • 收稿日期:  2013-06-17
  • 修回日期:  2014-03-21
  • 刊出日期:  2014-05-15

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