硅橡胶基电流变弹性体的动态粘弹性及非线性本构模型
对电流变弹性体（electrorheological elastomers,EREs）的动态粘弹性及本构模型进行研究。以硅橡胶为基体,TiO2/尿素核壳颗粒为功能分散相,在1kV/mm取向电场条件下固化,制备颗粒体积含量为30%的各同异性ERE。在不同电场强度、剪切频率、应变幅值下测试ERE的应力-应变滞回曲线,并分析各工况下ERE的动态粘弹性,得到电场强度、应变幅值、剪切频率等因素对ERE动态粘弹性的影响规律。在实验基础上,建立了基于修正Bouc-Wen模型的ERE非线性本构模型,并识别出模型参数。结果表明,该本构模型模拟结果与试验数据吻合较好,说明该模型能够准确表征材料的动态粘弹性和非线性...
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| Published in | 功能材料 Vol. 49; no. 1; pp. 1090 - 1096 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
大连理工大学 土木工程学院,辽宁 大连,116024%大连理工大学 材料科学与工程学院,辽宁 大连,116024
30.01.2018
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-9731 |
| DOI | 10.3969/j.issn.1001-9731.2018.01.017 |
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| Abstract | 对电流变弹性体（electrorheological elastomers,EREs）的动态粘弹性及本构模型进行研究。以硅橡胶为基体,TiO2/尿素核壳颗粒为功能分散相,在1kV/mm取向电场条件下固化,制备颗粒体积含量为30%的各同异性ERE。在不同电场强度、剪切频率、应变幅值下测试ERE的应力-应变滞回曲线,并分析各工况下ERE的动态粘弹性,得到电场强度、应变幅值、剪切频率等因素对ERE动态粘弹性的影响规律。在实验基础上,建立了基于修正Bouc-Wen模型的ERE非线性本构模型,并识别出模型参数。结果表明,该本构模型模拟结果与试验数据吻合较好,说明该模型能够准确表征材料的动态粘弹性和非线性特征。 |
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| AbstractList | TB381; 对电流变弹性体(electrorheological elastomers,EREs)的动态粘弹性及本构模型进行研究.以硅橡胶为基体,TiO2/尿素核壳颗粒为功能分散相,在1 kV/mm取向电场条件下固化,制备颗粒体积含量为30％的各同异性ERE.在不同电场强度、剪切频率、应变幅值下测试ERE的应力-应变滞回曲线,并分析各工况下ERE的动态粘弹性,得到电场强度、应变幅值、剪切频率等因素对ERE动态粘弹性的影响规律.在实验基础上,建立了基于修正Bouc-Wen模型的ERE非线性本构模型,并识别出模型参数.结果表明,该本构模型模拟结果与试验数据吻合较好,说明该模型能够准确表征材料的动态粘弹性和非线性特征. 对电流变弹性体（electrorheological elastomers,EREs）的动态粘弹性及本构模型进行研究。以硅橡胶为基体,TiO2/尿素核壳颗粒为功能分散相,在1kV/mm取向电场条件下固化,制备颗粒体积含量为30%的各同异性ERE。在不同电场强度、剪切频率、应变幅值下测试ERE的应力-应变滞回曲线,并分析各工况下ERE的动态粘弹性,得到电场强度、应变幅值、剪切频率等因素对ERE动态粘弹性的影响规律。在实验基础上,建立了基于修正Bouc-Wen模型的ERE非线性本构模型,并识别出模型参数。结果表明,该本构模型模拟结果与试验数据吻合较好,说明该模型能够准确表征材料的动态粘弹性和非线性特征。 |
| Abstract_FL | The viscoelastic properties and the modeling of electrorheological elastomers (EREs)under harmonic loadings were presented in this paper.With a 30％ volume fraction of TiO2/urea core-shell particles dispersed in silicone rubber matrix,the anisotropic ERE samples were fabricated by curing under a constant electric field of 1 kV/mm.The samples were tested under different levels of electric field with variable shear frequencies and strain amplitudes.Then the influences of loading conditions to viscoelastic properties of ERE were analyzed.Af-ter that a revised non-linear Bouc-Wen model was used to portray the behaviors of ERE and the parameters in this model were identified based on the experimental data.The simulations agreed well with the test data,indi-cating that the revised Bouc-Wen model can effectively reproduce the viscoelastic properties and nonlinearity of EREs. |
| Author | 张梓琦;马宁;王奇;钮晨光;董旭峰 |
| AuthorAffiliation | 大连理工大学土木工程学院,辽宁大连116024;大连理工大学材料科学与工程学院,辽宁大连116024 |
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| Author_FL | WANG Qi DONG Xufeng NIU Chenguang MA Ning ZHANG Ziqi |
| Author_FL_xml | – sequence: 1 fullname: ZHANG Ziqi – sequence: 2 fullname: MA Ning – sequence: 3 fullname: WANG Qi – sequence: 4 fullname: NIU Chenguang – sequence: 5 fullname: DONG Xufeng |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| Keywords | constitu-tive relation 非线性 nonlinearity 动态粘弹性 revised Bouc-Wen model 本构模型 修正Bouc-Wen模型 电流变弹性体 electrorheological elastomer viscoelastic properties |
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| Notes | The viscoelastic properties and the modeling of electrorheological elastomers（EREs）under harmonic loadings were presented in this paper.With a 30% volume fraction of TiO2/urea core-shell particles dispersed in silicone rubber matrix,the anisotropic ERE samples were fabricated by curing under a constant electric field of1 kV/mm.The samples were tested under different levels of electric field with variable shear frequencies and strain amplitudes.Then the influences of loading conditions to viscoelastic properties of ERE were analyzed.After that a revised non-linear Bouc-Wen model was used to portray the behaviors of ERE and the parameters in this model were identified based on the experimental data.The simulations agreed well with the test data,indicating that the revised Bouc-Wen model can effectively reproduce the viscoelastic properties and nonlinearity of EREs. 50-1099/TH |
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| Publisher | 大连理工大学 土木工程学院,辽宁 大连,116024%大连理工大学 材料科学与工程学院,辽宁 大连,116024 |
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| Snippet | 对电流变弹性体（electrorheological elastomers,EREs）的动态粘弹性及本构模型进行研究。以硅橡胶为基体,TiO2/尿素核壳颗粒为功能分散相,在1kV/mm取向电场条件下固化,制备... TB381; 对电流变弹性体(electrorheological elastomers,EREs)的动态粘弹性及本构模型进行研究.以硅橡胶为基体,TiO2/尿素核壳颗粒为功能分散相,在1 kV/mm取向电场条件下固... |
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| SubjectTerms | 修正Bouc-Wen模型 动态粘弹性 本构模型 电流变弹性体 非线性 |
| Title | 硅橡胶基电流变弹性体的动态粘弹性及非线性本构模型 |
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