[1]仰建岗,王秉纲,陈拴发..沥青混合料应变-寿命疲劳方程研究[J].郑州大学学报(工学版),2007,28(01):83-86.[doi:10.3969/j.issn.1671-6833.2007.01.021]
　Yang Jiangang,Wang Binggang,Chen Lianfa.Study on strain-life fatigue equation of asphalt mixture[J].Journal of Zhengzhou University (Engineering Science),2007,28(01):83-86.[doi:10.3969/j.issn.1671-6833.2007.01.021]
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沥青混合料应变-寿命疲劳方程研究()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
28
期数:
2007年01期
页码:
83-86
栏目:
出版日期:
1900-01-01

文章信息/Info

Title:
Study on strain-life fatigue equation of asphalt mixture
作者:
仰建岗; 王秉纲; 陈拴发.
长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064;江西省交通科学研究院,江西,南昌,310000, 长安大学,特殊地区公路工程教育部重点实验室,陕西,西安,710064
Author(s):
Yang Jiangang; Wang Binggang; Chen Lianfa
关键词:
道路工程;  沥青混合料;  应变-寿命疲劳方程;  疲劳开裂
Keywords:
DOI:
10.3969/j.issn.1671-6833.2007.01.021
文献标志码:
A
摘要:
在国内外研究成果基础上,提出了合理可行的沥青混合料直接拉伸疲劳试验中试件尺寸、失效判据、控制方式、加载频率和试验温度等条件.基于不同应变水平的疲劳试验结果,分析了平均应力影响,建立了沥青混合料应变-寿命疲劳方程,可作为疲劳开裂寿命预估的依据,并提出了沥青混合料疲劳开裂拉应变的阀值和极限值.利用沥青混合料直接拉伸疲劳试验得到的应变-寿命疲劳方程能更好体现沥青混合料的疲劳特征,其疲劳开裂拉应变的阀值和极限值能充分反映沥青混合料疲劳破坏的过程.
Abstract:
Based on the research results at home and abroad, reasonable and feasible conditions such as specimen size, failure criterion, control mode, loading frequency and test temperature in the direct tensile fatigue test of asphalt mixture are proposed. Based on the fatigue test results of different strain levels, the average stress influence is analyzed, and the strain-life fatigue equation of asphalt mixture is established, which can be used as the basis for estimating the fatigue cracking life, and the threshold value and limit value of fatigue cracking tensile strain of asphalt mixture are proposed. The strain-life fatigue equation obtained by direct tensile fatigue test of asphalt mixture can better reflect the fatigue characteristics of asphalt mixture, and the threshold and limit values of fatigue cracking tensile strain can fully reflect the fatigue failure process of asphalt mixture.

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更新日期/Last Update: 1900-01-01