| 沥青混合料疲劳损伤机理研究 |
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| 引用本文： | 赵俐,高爽.沥青混合料疲劳损伤机理研究[J].交通标准化,2009(11). |
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| 作者姓名： | 赵俐 高爽 |
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| 作者单位： | [1]贵州交通建设工程造价管理站,贵州贵阳550003 [2]辽宁省交通科学研究院,辽宁沈阳110015 |
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| 摘 要： | 在根据应力等效假设提出沥青混合料疲劳损伤参量的基础上，通过对常应力小梁弯曲疲劳试验数据的分析得出：不同试验条件下的沥青混合料弯曲疲劳试件的损伤累积过程都具有相同的变化规律，即随着加载次数的增加，沥青混合料的累积损伤量不断增大．累积损伤曲线的突变点就是沥青混合料达到疲劳破坏的标志。
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| 关 键 词： | 沥青混合料 疲劳 累积损伤 |
Fatigue Damage Mechanism of Asphalt Mixture |
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| ZHAO Li,GAO Shuang.Fatigue Damage Mechanism of Asphalt Mixture[J].Communications Standardization,2009(11). |
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| Authors: | ZHAO Li GAO Shuang |
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| Institution: | 1.Guizhou Transportation Construction Project Cost Management Station;Guiyang 550003;China;2.Liaoning Provincial Communication Scientific Research Institute;Shenyang 110015;China |
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| Abstract: | Based on the assumption of equivalent stress, the fatigue damage parameter of asphalt mixture is put forward. The analysis of data on normal stress beam bending fatigue tests show that the cumulating processes of damage of asphalt mixture bending fatigue samples in different test conditions have the same changing regulation, which is that cumulated damage value increases with the increase of loading times, and the mutational point of cumulated damage curve indicates the destruction of asphalt mixture. |
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| Keywords: | asphalt mixture fatigue cumulated damage |
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