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基于有损伤体元件的广义Kelvin模型蠕变全过程探究

宋彦琦 李小龙 马宏发 傅航

宋彦琦, 李小龙, 马宏发, 傅航. 基于有损伤体元件的广义Kelvin模型蠕变全过程探究[J]. 应用数学和力学, 2021, 42(6): 637-644. doi: 10.21656/1000-0887.410255
引用本文: 宋彦琦, 李小龙, 马宏发, 傅航. 基于有损伤体元件的广义Kelvin模型蠕变全过程探究[J]. 应用数学和力学, 2021, 42(6): 637-644. doi: 10.21656/1000-0887.410255
SONG Yanqi, LI Xiaolong, MA Hongfa, FU Hang. Research on the Whole Creep Process of the Generalized Kelvin Model Based on Damaged Body Elements[J]. Applied Mathematics and Mechanics, 2021, 42(6): 637-644. doi: 10.21656/1000-0887.410255
Citation: SONG Yanqi, LI Xiaolong, MA Hongfa, FU Hang. Research on the Whole Creep Process of the Generalized Kelvin Model Based on Damaged Body Elements[J]. Applied Mathematics and Mechanics, 2021, 42(6): 637-644. doi: 10.21656/1000-0887.410255

基于有损伤体元件的广义Kelvin模型蠕变全过程探究

doi: 10.21656/1000-0887.410255
基金项目: 

国家自然科学基金联合基金(U1704242)

详细信息
    作者简介:

    宋彦琦(1969—),女,教授,博士生导师(通讯作者. E-mail: yanqi_song@sina.com).

    通讯作者:

    宋彦琦(1969—),女,教授,博士生导师(通讯作者. E-mail: yanqi_song@sina.com).

  • 中图分类号: TU45

Research on the Whole Creep Process of the Generalized Kelvin Model Based on Damaged Body Elements

  • 摘要: 岩石的蠕变特性往往对隧道和地下工程的稳定性有着重要的控制作用.针对岩石蠕变的阶段性特征,可将岩石蠕变全过程分为四个阶段.广义Kelvin模型可较好地反映前三个阶段的岩石蠕变特性,不能理想地反映加速蠕变阶段特征.通过引入损伤体元件和Kachanov的损伤因子演化公式,构建了具有损伤体元件的广义Kelvin模型,从而建立了可以体现岩石蠕变全过程的蠕变模型,并提出较为简单的组合模型参数计算方法.该模型不仅能较好地反映岩石蠕变全过程,且模型参数易于确定.利用该模型对砂质泥岩单轴压缩蠕变实验曲线进行拟合分析,拟合效果良好,研究结果可为类似工程提供参考.
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出版历程
  • 收稿日期:  2020-09-07
  • 修回日期:  2020-11-20

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