• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Tan, Zhifei (Tan, Zhifei.) | Leng, Zhen (Leng, Zhen.) | Jiang, Jiwang (Jiang, Jiwang.) | Cao, Peng (Cao, Peng.) | Jelagin, Denis (Jelagin, Denis.) | Li, Gaoyang (Li, Gaoyang.) | Sreeram, Anand (Sreeram, Anand.)

收录:

EI Scopus SCIE

摘要:

Asphalt concrete (AC) is a composite material consisting of binder, aggregates and air voids. The quantitative effect of aggregate-to-aggregate contact on the mechanical performance of AC is an important and complex issue, which has not been fully understood yet. To fill this gap, this study aims to characterize the aggregate contacts in AC and evaluate their effects on the viscoelastic behavior of AC through micromechanical finite element (FE) modeling. To this end, 3D microstructural models were generated through digital image processing (DIP) method and aggregate contacts were captured in the model via contact zone (CZ) elements. A CZ model was proposed and verified by a parametric study to identify the viscoelastic properties of CZ elements, while the viscoelastic properties of matrix phase were determined through laboratory tests. Steady-state dynamic (SSD) analysis was then conducted to investigate the macro-scale viscoelastic response of AC. It was found that the proposed modeling approach captures the measured response accurately. Accounting for aggregate contacts results in higher predicted AC dynamic moduli and lower phase angles, thus improving the agreement between modeling and experimental results. The numerical model developed in this study provides a promising approach for investigating the effect of aggregate contacts on the mechanical performance of AC. (c) 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

关键词:

Steady-state dynamics Complex modulus Aggregate contacts Finite element analysis

作者机构:

  • [ 1 ] [Tan, Zhifei]Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China
  • [ 2 ] [Leng, Zhen]Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China
  • [ 3 ] [Jiang, Jiwang]Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China
  • [ 4 ] [Li, Gaoyang]Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China
  • [ 5 ] [Cao, Peng]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing, Peoples R China
  • [ 6 ] [Jelagin, Denis]KTH Royal Inst Technol, Dept Civil & Architectural Engn, Brinellvagen 23, S-10044 Stockholm, Sweden
  • [ 7 ] [Sreeram, Anand]Univ Texas Austin, Dept Civil Architectural & Environm Engn, Austin, TX USA

通讯作者信息:

电子邮件地址:

查看成果更多字段

相关关键词:

来源 :

MATERIALS & DESIGN

ISSN: 0264-1275

年份: 2021

卷: 213

8 . 4 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:116

JCR分区:1

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 25

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 0

归属院系:

在线人数/总访问数:498/4966049
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司