| 一种新的沥青混合料疲劳性能评价方法 |
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| 引用本文： | 朱洪洲,黄晓明.一种新的沥青混合料疲劳性能评价方法[J].公路交通科技,2005,22(2):4-6. |
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| 作者姓名： | 朱洪洲 黄晓明 |
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| 作者单位： | 东南大学交通学院,江苏,南京,210096 |
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| 摘 要： | 根据Lemaitre应变等效假设,定义沥青混合料疲劳损伤参量,并在分析沥青混合料疲劳损伤过程的基础上,定义新的疲劳破坏标准。然后通过三分点小梁弯曲疲劳试验建立基于损伤理论的沥青混合料疲劳性能评价方法。重合性检验表明,该损伤疲劳模型与荷载控制模式无关,从而可以更合理的评价混合料疲劳性能。
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| 关 键 词： | 沥青混合料 疲劳模型 损伤理论 |
| 文章编号： | 1002-0268(2005)02-0004-03 |
| 修稿时间： | 2003年12月17 |
Fatigue Model of Asphalt Mixtures Based on Damage Theory |
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| ZHU Hong-zhou,HUANG Xiao-ming.Fatigue Model of Asphalt Mixtures Based on Damage Theory[J].Journal of Highway and Transportation Research and Development,2005,22(2):4-6. |
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| Authors: | ZHU Hong-zhou HUANG Xiao-ming |
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| Abstract: | In this paper,a new fatigue damage variable was defined based on Lemaitre's strain equivalent hypothesis and a new fatigue criterion of asphalt mixtures was brought forward based on fatigue damage development process.Through the third-point flexure fatigue tests a fatigue damage model of asphalt mixtures based on damage theory was developed which appears to unify between two modes of loading.It can be used to evaluate the fatigue performance of asphalt mixtures rationally. |
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| Keywords: | Asphalt mixes Fatigue equation Damage theory |
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