| 沥青混合料增量型热粘弹性本构关系研究 |
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| 引用本文： | 钱国平,郑健龙,周志刚,田小革.沥青混合料增量型热粘弹性本构关系研究[J].应用力学学报,2006,23(3):338-343. |
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| 作者姓名： | 钱国平 郑健龙 周志刚 田小革 |
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| 作者单位： | 长沙理工大学,长沙,410076 |
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| 摘 要： | 基于热粘弹性力学理论,就不同的温度条件下沥青混合料的应力松弛特征开展了试验研究,用广义Maxwell模型模拟沥青混合料的粘弹特性,应用热流变简单材料的时温等效原理对实验结果进行了分析和参数拟合,然后通过理论推导得到沥青混合料非定常和非均匀变温条件下增量型热粘弹性本构关系;在此基础上,给出利用此增量型应力应变本构关系进行沥青路面热粘弹性力学分析的数值实现方法,并给出一个计算实例。
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| 关 键 词： | 沥青混合料 热粘弹理论 增量型本构关系 温度应力 有限元法 |
| 文章编号： | 1000-4939（2006）03-0338-06 |
| 收稿时间： | 2005-07-05 |
| 修稿时间： | 2005-07-052005-12-05 |
Incremental Thermalviscoelastic Constitutive Relation of Asphalt Mixtures |
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| Qian Guoping,Zheng Jianlong,Zhou Zhigang,Tian Xiaoge.Incremental Thermalviscoelastic Constitutive Relation of Asphalt Mixtures[J].Chinese Journal of Applied Mechanics,2006,23(3):338-343. |
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| Authors: | Qian Guoping Zheng Jianlong Zhou Zhigang Tian Xiaoge |
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| Abstract: | Following thermalviscoelasticity theory,the stress relaxation test of asphalt mixtures is investigated under different temperature environment. Simulating the viscoelastic property of asphalt mixtures with generalized Maxwell model,the test results are analyzed and the interrelated model parameters are fitted with the time-temperature transform principle of thermo-rheologically simple materials. And the incremental thermalviscoelastic constitutive relation in nonconstant,nonuniform temperature is obtained. The numerical method for thermalviscoelastic analysis of asphalt pavement using the incremental constitutive relation is proposed to evaluate an example. |
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| Keywords: | asphalt mixture thermalviscoelasticity theory incremental constitutive relation thermal stress |
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