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作者:

Cao, Peng (Cao, Peng.) | Leng, Zhen (Leng, Zhen.) | Shi, Feiting (Shi, Feiting.) | Zhou, Changjun (Zhou, Changjun.) | Tan, Zhifei (Tan, Zhifei.) | Wang, Ziyu (Wang, Ziyu.)

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EI Scopus SCIE

摘要:

The creep of asphalt and asphalt concrete were numerically studied extensively. However, most of the previous studies only researched the decelerated creep stage and equi-velocity creep stage while rarely shed light on the accelerated creep stage. This paper proposes a novel 3 dimensional visco-elastic damage model utilizing two spring and one dashpot components coupled with Kachanov and Robotnov (K-R) creep damage theory to describe the whole stages of the creep of asphalt and asphalt concrete, i.e., decelerated creep stage, equi-velocity creep stage, and accelerated creep stage. The damage evolution equation based on the K-R creep damage theory is integrated into the visco-elastic constitutive model by the continuum mechanics, and then the uniaxial creep damage solution is deducted. A robust numerical algorithm of this model is developed. Through numerical tests on uniaxial compression and pre-notched three-point bending beam, the numerical curves are analogue to measured creep curves, which justifies the accuracy and efficiency of the visco-elastic model coupling with K-R creep damage theory and the corresponding numerical algorithm. This paper provides not only an accurate and robust creep damage constitutive model for the asphalt and asphalt concrete, but also a valuable model and an efficient numerical method to evaluate the damage and rupture behavior of large-scale infrastructures fabricated by asphalt and asphalt concrete. (C) 2020 Elsevier Ltd. All rights reserved.

关键词:

Visco-elastic Finite element method Asphalt concrete K-R creep damage theory

作者机构:

  • [ 1 ] [Cao, Peng]Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100124, Peoples R China
  • [ 2 ] [Leng, Zhen]Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China
  • [ 3 ] [Tan, Zhifei]Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China
  • [ 4 ] [Shi, Feiting]Harbin Inst Technol, Sch Civil Engn, Harbin 150090, Peoples R China
  • [ 5 ] [Zhou, Changjun]Dalian Univ Technol, Sch Transportat & Logist, Dalian 116024, Peoples R China
  • [ 6 ] [Wang, Ziyu]Hainan Trop Ocean Univ, Sch Ecol Environm, Sanya 572022, Hainan, Peoples R China

通讯作者信息:

  • [Zhou, Changjun]Dalian Univ Technol, Sch Transportat & Logist, Dalian 116024, Peoples R China

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来源 :

CONSTRUCTION AND BUILDING MATERIALS

ISSN: 0950-0618

年份: 2020

卷: 264

7 . 4 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:169

被引次数:

WoS核心集被引频次: 15

SCOPUS被引频次: 15

ESI高被引论文在榜: 0 展开所有

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