| 玄武岩纤维高粘沥青砂蠕变损伤模型的研究 |
| |
| 引用本文： | 唐雪莹,孙雅珍,王金昌.玄武岩纤维高粘沥青砂蠕变损伤模型的研究[J].公路工程,2020(1):62-66. |
| |
| 作者姓名： | 唐雪莹 孙雅珍 王金昌 |
| |
| 作者单位： | 沈阳城市建设学院;沈阳建筑大学交通学院;浙江大学交通工程研究所 |
| |
| 基金项目： | 国家自然科学基金项目资助(51478276) |
| |
| 摘 要： | 研究表明纤维可以增强沥青混合料的路用性能1-2]。首先通过蠕变试验验证了玄武岩纤维增强沥青混合料抵抗蠕变变形的能力,然后使用基于Kachanov损伤机制和Burges模型进行耦合得到的蠕变损伤模型对得到的蠕变曲线进行拟合得到相关参数,结果显示拟合效果良好,说明该模型可以很好地描述蠕变三阶段曲线;最后对比分析了两种试件的延迟时间和松弛时间。
|
| 关 键 词： | 蠕变三阶段 玄武岩纤维 BURGERS模型 损伤力学 |
Study on Creep Damage Model of High Viscosity Asphalt Sand with Basalt Fiber |
| |
| TANG Xueying,SUN Yazhen,WANG Jinchang.Study on Creep Damage Model of High Viscosity Asphalt Sand with Basalt Fiber[J].Highway Engineering,2020(1):62-66. |
| |
| Authors: | TANG Xueying SUN Yazhen WANG Jinchang |
| |
| Institution: | (Shenyang Urban Construction University Shenyang,Liaoning 110167,China;Shenyang Construction University,Shenyang Liaoning 110168,China;Zhejiang University Hangzhou,Zhejiang 310058,China) |
| |
| Abstract: | Research showed that fiber can enhance the mechanical performance of asphalt mixture.In this paper,the ability of basalt fiber reinforced asphalt mixture to resist creep deformation is verified by creep test.Then the creep damage model which is based on Kachanov damage mechanism and Burges model is used to fit the creep curve.The results show that the fitting effect is good.It is shown that the model can describe the creep three-stage curve well,and the delay time and relaxation time of the two specimens are compared and analyzed. |
| |
| Keywords: | three stages of creep Burgers model of basalt fiber damage mechanics |
| 本文献已被 CNKI 维普 等数据库收录！ |
