| 高密度聚乙烯结构发泡塑料拉伸本构关系的研究 |
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| 引用本文： | 饶聪超,姜献峰,李俊源,杨德伟,陈林林.高密度聚乙烯结构发泡塑料拉伸本构关系的研究[J].中国塑料,2012,26(7):66-69. |
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| 作者姓名： | 饶聪超 姜献峰 李俊源 杨德伟 陈林林 |
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| 作者单位： | 浙江工业大学 浙江工业大学 |
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| 摘 要： | 为了提高高密度聚乙烯（PE-HD）结构发泡工程的长期稳定性，在Sherwood-Frost模型的基础上，建立了包括应变率和密度的PE-HD结构发泡材料的本构关系，依据发泡塑料的拉伸应力-应变曲线，用数值方法拟合了该模型中的相关参数。验证结果表明，提出的本构方程能反映材料的应力-应变关系。
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| 关 键 词： | 高密度聚乙烯 结构发泡 拉伸 本构关系 参数 |
| 收稿时间： | 2012-03-13 |
Research on Constitutive Relation of High-density Polyethylene Structural Foam Under Tensile |
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| RAO Congchao,JIANG Xianfeng,LI Junyuan, YANG Dewei,CHEN Linlin.Research on Constitutive Relation of High-density Polyethylene Structural Foam Under Tensile[J].China Plastics,2012,26(7):66-69. |
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| Authors: | RAO Congchao JIANG Xianfeng LI Junyuan YANG Dewei CHEN Linlin |
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| Affiliation: | (The MOE Key Laboratory of Mechanical Manufacture and Automation,Zhejiang University of Technology, Hangzhou 310014,China) |
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| Abstract: | In order to improve the long-term stability of high-density polyethylene(PE-HD) structural foaming engineering,the constitutive relation of PE-HD structural foam including strain rate and density was established on the basis of Sherwood-Frost model.Based on the tensile stress and strain curve of plastic foams,the related parameters were fitted via a numerical method.A comparison between the calculated and experimental values indicated that the proposed constitutive model may describe the stress-strain relationship of PE-HD. |
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| Keywords: | high-density polyethylene structural foam tensile constitutive relation parameter |
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