| 模具用钨基复合材料失效机理研究 |
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| 引用本文： | 李亚峰,黄伟,王润珍. 模具用钨基复合材料失效机理研究[J]. 兵器材料科学与工程, 2011, 34(3): 54-56. DOI: CNKI:33-1331/TJ.20110429.2307.001 |
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| 作者姓名： | 李亚峰 黄伟 王润珍 |
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| 作者单位： | 浙江工商职业技术学院,浙江,宁波,315012;中国兵器科学研究院宁波分院,浙江,宁波,315103;内蒙古第一机械集团公司第六分公司,内蒙古,包头,014032 |
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| 摘 要： | 以微观尺度下的数值模拟为手段,研究钨基复合材料的失效机理。结果表明,材料的高强度相-钨颗粒相为材料实际的承载单元,它的强度水平在某种程度上体现材料整体的性能,钨颗粒相中的实际应力水平远远高于外载荷的水平,因此材料出现未达到钨颗粒相理论强度而出现失效的现象。
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| 关 键 词： | 失效机理 钨 数值模拟 有限元 |
Failure mechanism of tungsten matrix composite for mould |
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| LI Yafeng,HUANG We,WANG Runzhen. Failure mechanism of tungsten matrix composite for mould[J]. Ordnance Material Science and Engineering, 2011, 34(3): 54-56. DOI: CNKI:33-1331/TJ.20110429.2307.001 |
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| Authors: | LI Yafeng HUANG We WANG Runzhen |
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| Affiliation: | LI Yafeng1,HUANG Wei2,WANG Runzhen3 (1.Zhejiang Business Technology Institute,Ningbo 315012,China,2.Ningbo Branch of China Academy of Ordnance Science,Ningbo 315103,3.No.6 Branch of Inner Mongolia First Machinery Group Corporation,Baotou 014032,China) |
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| Abstract: | The failure mechanism of tungsten matrix composite was studied with microscale numerical simulation.The results show that high strength tungsten particles are the real loading elements of composite,its strength level embodies the whole property of the composite to some extent.The real stress in tungsten particles is much higher than the external load,so failure may take place when the external load is less than the theoretical strength of tungsten particles. |
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| Keywords: | failure mechanism tungsten numerical simulation finite element |
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