[1]郭一峰,徐赵东.一种考虑位移幅值影响的黏弹性材料力学模型[J].东南大学学报(自然科学版),2011,41(1):164-167.[doi:10.3969/j.issn.1001-0505.2011.01.032]
　Guo Yifeng,Xu Zhaodong.Mechanical model on viscoelastic material with consideration of displacement amplitude[J].Journal of Southeast University (Natural Science Edition),2011,41(1):164-167.[doi:10.3969/j.issn.1001-0505.2011.01.032]
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一种考虑位移幅值影响的黏弹性材料力学模型()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
41
期数:
2011年第1期
页码:
164-167
栏目:
土木工程
出版日期:
2011-01-20

文章信息/Info

Title:
Mechanical model on viscoelastic material with consideration of displacement amplitude
作者:
郭一峰1; 2; 徐赵东1
(1东南大学土木工程学院,南京 210096)
(2苏州工业园区设计研究院有限责任公司,苏州 215000)
Author(s):
Guo Yifeng 1; 2; Xu Zhaodong 1
(1School of Civil Engineering, Southeast University, Nanjing 210096, China)
(2Suzhou Industrial Park Design and Research Institute Co., Ltd., Suzhou 215000, China)
关键词:
修正Doolittle方程; 等效标准固体模型; 位移幅值; 修正等效标准固体模型
Keywords:
modified Doolittle’s equation;  equivalent standard solid model;  displacement amplitude;  modified equivalent standard solid model
分类号:
TU352
DOI:
10.3969/j.issn.1001-0505.2011.01.032
摘要:
为了更好地确定黏弹性材料的力学性能,提出了一种同时考虑温度、频率和位移幅值影响的黏弹性材料力学模型.从温度因素与损伤指标2个方面考虑了位移幅值对黏弹性材料力学性能的影响,通过修正Doolittle方程和损伤变量方程分别推导了位移移位因子与损伤指标,结合等效标准固体模型,提出了修正等效标准固体模型.数值分析结果表明,储能模量G1和损耗因子η的试验值与计算值拟合较好,满足应用要求.该模型能够较好地计算不同温度、频率和位移幅值下黏弹性材料的储能模量G1和损耗因子η.
Abstract:
In order to determine the mechanics of viscoelastic material better, a viscoelastic model that can simultaneously consider the effect of temperature, frequency and displacement is proposed in this paper. The effect of displacement amplitude on the mechanics of viscoelastic material is considered from two aspects: temperature factor and damage index. Displacement shift factor and damage index are derived from Doolittle’s equation and damage variable equation, respectively, and modified equivalent standard solid model is put forward based on equivalent standard solid model. The numerical analysis shows that the experimental value and the calculation value of G1 and η fit well to each other and the model proposed meets the requirement of application. This model can easily calculate the value of G1 and η under different temperature, frequency and displacement.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介:郭一峰(1985—),男,硕士生;徐赵东(联系人),男,博士,教授,博士生导师,zhdxu@yahoo.com.cn.
基金项目:国家自然科学基金重大研究计划资助项目(90915004)、江苏省自然科学基金资助项目(BK2008282)、教育部博士点基金资助项目(6205000009)、常州市科技计划资助项目(CN20090041).
引文格式: 郭一峰,徐赵东.一种考虑位移幅值影响的黏弹性材料力学模型[J].东南大学学报:自然科学版,2011,41(1):164-167.[doi:10.3969/j.issn.1001-0505.2011.01.032]
更新日期/Last Update: 2011-01-20