| 金属粉末烧结材料泊松比模型的探讨 |
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| 引用本文： | 屠挺生,林大为.金属粉末烧结材料泊松比模型的探讨[J].装备环境工程,2001,19(2):4-7. |
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| 作者姓名： | 屠挺生 林大为 |
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| 作者单位： | 上海大学材料学院!上海200072 |
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| 摘 要： | 分析了粉末烧结材料泊松比与屈服准则的关系 ,指出了泊松比Kuhn模型的等价假设 ,比较了几种泊松比模型的特点 ,提出了一种能反映致密过程中密度较大时泊松比增长率减缓的特点的箕舌线函数型泊松比模型。
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| 关 键 词： | 金属粉末烧结材料 塑性变形 泊松比模型 |
| 文章编号： | 1000-8446(2001)02-0004-04 |
| 修稿时间： | 2000年9月20日 |
A Comment on the Poisson's Ratio Model of Sintered Metal Powder Materials |
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| TU Ting sheng,LIN Da wei.A Comment on the Poisson''''s Ratio Model of Sintered Metal Powder Materials[J].Equipment Environmental Engineering,2001,19(2):4-7. |
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| Authors: | TU Ting sheng LIN Da wei |
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| Abstract: | The relationship between Poisson's ratio of sintered powder material and yield criterion was analyzed.The equivalent assumption of the Kuhn Poisson's ratio model was proposed.The characteristics of the Kuhn model were compared with that of some other kinds of the Poisson's ratio model.A new Poisson's ratio model,as called tongue shape function,was deduced to describe the tendency that the increment rate of Poisson's ratio decreases progressively when the density of sintered powder material becomes higher during densification. |
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| Keywords: | sintered metal powder material plastic deformation Poisson's ratio model |
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