• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Engineering analysis with boundary elements >Multi-scale peridynamic formulations for chloride diffusion in concrete
【24h】

Multi-scale peridynamic formulations for chloride diffusion in concrete

机译：混凝土中氯化物扩散的多尺度白颌式制剂

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A multi-scale peridynamic (PD) model of concrete with three material phases is developed to study the influences of the properties of the interfacial transition zone (ITZ) on chloride diffusion. In the PD model, the quadtree algorithm is employed to generate the multi-scale grid and two correction schemes based on the background grid are developed to calibrate the volume and length of PD bonds. A comparison with the uniform grid PD model and the finite element model is carried out to validate the proposed multi-scale PD model. The results of the multi-scale PD model are consistent with that of the two models. In addition, the effects of ITZ properties, including ITZ diffusivity and ITZ thickness, on chloride diffusion are investigated. These results demonstrate that the penetration depth and the chloride concentration increase with the increasing ITZ diffusivity and ITZ thickness, and the increase rate of chloride concentration decreases with the exposed time.
机译：开发了一种具有三个材料阶段的混凝土的多尺度白动力学（PD）模型，以研究界面过渡区（ITZ）的性质对氯化物扩散的影响。在PD模型中，采用Quadtree算法来生成多尺度网格，并且开发了基于背景网格的两个校正方案以校准PD键的音量和长度。执行与统一网格PD模型和有限元模型的比较以验证所提出的多尺度PD模型。多尺度PD模型的结果与两种模型的结果一致。此外，研究了ITZ性质，包括ITZ扩散和ITZ厚度，在氯化物扩散的影响。这些结果表明，随着ITZ扩散率和ITZ厚度的增加，渗透深度和氯化物浓度增加，并且氯化物浓度的提高率随暴露的时间而降低。

著录项

  • 来源
    《Engineering analysis with boundary elements》 |2020年第11期|107-117|共11页
  • 作者

    Li Guo; Xiaoyu Zhang; Wanjin Li; Xin Zhou;

  • 作者单位

    Jiangsu Key Laboratory of Engineering Mechanics Department of Engineering Mechanics School of Civil Engineering Southeast University Nanjing 210096 China;

    Jiangsu Key Laboratory of Engineering Mechanics Department of Engineering Mechanics School of Civil Engineering Southeast University Nanjing 210096 China;

    Jiangsu Key Laboratory of Engineering Mechanics Department of Engineering Mechanics School of Civil Engineering Southeast University Nanjing 210096 China;

    Jiangsu Key Laboratory of Engineering Mechanics Department of Engineering Mechanics School of Civil Engineering Southeast University Nanjing 210096 China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Multi-scale model; Peridynamic method; Chloride diffusion; Concrete;

    机译：多尺度模型;王动脉法;氯化物扩散;具体的;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号