| 基于耗散能原理的沥青混合料疲劳特性分析 |
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| 引用本文： | 刘伟民,黄晓明. 基于耗散能原理的沥青混合料疲劳特性分析[J]. 河南科技大学学报(自然科学版), 2006, 27(2): 23-25 |
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| 作者姓名： | 刘伟民 黄晓明 |
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| 作者单位： | 东南大学,交通学院,江苏,南京,210096;东南大学,交通学院,江苏,南京,210096 |
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| 基金项目： | 国家863计划项目(2002AA335100) |
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| 摘 要： | 耗散能原理在沥青混合料疲劳特性的研究中已获得应用,本文通过实验验证了沥青混合料累积耗散能与疲劳寿命之间的唯一对应关系,并根据Schapery相关法则对混合料疲劳特性问题中的粘弹性及非线性因素进行了分析。耗散能法基于粘弹性理论将伪变量的概念应用到混合料疲劳性能研究中,对于疲劳破坏的标准定义更为准确,是分析混合料疲劳特性的一种有效方法。
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| 关 键 词： | 沥青混合料 疲劳寿命 耗散能 伪应变 粘弹性 |
| 文章编号： | 1672-6871（2006）02-0023-03 |
| 收稿时间： | 2005-10-14 |
| 修稿时间： | 2005-10-14 |
Analysis of Fatigue Performance of Asphalt Mixture Based on Dissipated Energy Theories |
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| LIU Wei-min,HUANG Xiao-ming. Analysis of Fatigue Performance of Asphalt Mixture Based on Dissipated Energy Theories[J]. Journal of Henan University of Science & Technology:Natural Science, 2006, 27(2): 23-25 |
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| Authors: | LIU Wei-min HUANG Xiao-ming |
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| Abstract: | Dissipated energy theories have been applied to the study of fatigue performance of asphalt mixture. The sole corresponding relation between dissipated energy and fatigue life of asphalt mixture is proved through experiments. The problems of viscoelasticity as well as nonlinearity in fatigue performance are analyzed. Dissipated energy method is an effective way to analyze the fatigue performance of asphalt mixture as it introduces the concept of pseudo values into the research, thus defining the criterion of fatigue damage more accurately. |
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| Keywords: | Asphalt mixture Fatigue life Dissipated energy Pseudo strain Viscoelasticity |
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