| 多孔金属结合剂金刚石砂轮节块的有限元分析 |
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| 引用本文： | 丁兰英. 多孔金属结合剂金刚石砂轮节块的有限元分析[J]. 佛山科学技术学院学报(自然科学版), 2008, 26(4) |
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| 作者姓名： | 丁兰英 |
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| 作者单位： | 南京农业大学,工学院,江苏,南京,210031 |
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| 摘 要： | 利用十四面体模型描述开孔金属结合剂金刚石砂轮胎体的胞体结构，并用有限元方法确定材料的弹性模量，进而将金刚石以增强颗粒的形式加入胎体材料中，形成开孔结构的金属结合剂金刚石砂轮节块的有限元模型。数值分析了以金刚石为增强颗粒的多孔金属结合剂复合材料在横向剪切载荷下的应力情况。结果表明，多孔金属结合剂金刚石砂轮节块在承受横向剪切载荷下，最大应力发生在胎体上，这与试验中节块断裂往往出现在胎体中孔的棱边上相一致。
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| 关 键 词： | 多孔金属结合剂金刚石砂轮 十四面体模型 弹性模量 颗粒增强 有限元 |
Finite element analysis for the porous metal-bonded diamond wheel |
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| DING Lan-ying. Finite element analysis for the porous metal-bonded diamond wheel[J]. Journal of Foshan University(Natural Science Edition), 2008, 26(4) |
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| Authors: | DING Lan-ying |
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| Abstract: | The cellular structure of porous metal-bonded diamond wheel can be modeled by tetrakaidecahedron and their elastic modulus can be calculated by the finite element method.Furthermore,diamond is acted as reinforced particle.The stress field of diamond reinforced porous metal matrix composites are simulated using the model under the shear load.The result show that the maximum stress fields of the model is on the matrix which is agree with the experimental results that the fracture occur on the edge of the porous metal-bonded diamond wheel. |
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| Keywords: | porous metal-bonded diamond wheel tetrakaidecahedron model elastic modulus particle reinforcement finite element method |
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