Mesoscopic Analysis of Mortar under High-Stress Creep and Low-Cycle Fatigue Loading

• Matsumoto Koji

  Division of Built Environment, Hokkaido University, Japan.

• Sato Yasuhiko

  Division of Built Environment, Hokkaido University, Japan.

• Ueda Tamon

  Division of Built Environment, Hokkaido University, Japan.

• Wang Licheng

  Institute of Structural Engineering, Dalian University of Technology, China.

Abstract

Mesoscopic analyses of mortar failure under high-stress creep and low-cycle fatigue loading are presented using a newly developed time-dependent constitutive model for Rigid Body Spring Model, which is a discrete analysis method. The failure process over time was successfully expressed by adopting a four-component combined mechanical model as the time-dependent model of connected springs, and by developing a new method for determining the failure state for load-controlled analysis. The numerical model provides reasonable results not only for the stress-strain characteristics under cyclic loading but also for the inapplicability of Miner's law under varying stress levels. The mechanism of the time-dependent failure of mortar was clarified by investigating the local stress-strain behaviors.

Journal

• Journal of Advanced Concrete Technology

  Journal of Advanced Concrete Technology 6 (2), 337-352, 2008

  Japan Concrete Institute

Details

• CRID: 1390001205220862592
• NII Article ID: 130000080430
• DOI: 10.3151/jact.6.337
• ISSN: 13473913
• ISSN: 13468014
• Web Site: https://www.jstage.jst.go.jp/article/jact/6/2/6_2_337/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed