Nonlocal microplane model for damage due to cracking

Zdenek P Bazant*, Yuyin Xiang, Josko Ozbolt

*Corresponding author for this work

Research output: Contribution to conferencePaper

9 Scopus citations

Abstract

As it is now generally accepted, finite element analysis of distributed softening damage in quasi-brittle structures such as concrete structures cannot be based on a classical, that is, local, constitutive model of the material. Such a model introduces incorrect excessive localizations, spurious size effect and spurious mesh sensitivity in finite element computations. To overcome these problems, the constitutive model must be supplemented with some sort of the so-called localization limiter. One effective type of the localization limiter is the nonlocal continuum. The present paper reviews two recent developments, one dealing with the formulation and application of a special new type of nonlocal model for materials such as concrete, which is derived physically from microcrack interactions, and numerical application of this model in finite element analysis. The paper also briefly summaries a new nonlinear triaxial damage model based on the microplane concept utilizing the new idea of stress-strain boundaries.

Original languageEnglish (US)
Pages694-697
Number of pages4
StatePublished - Jan 1 1995
EventProceedings of the 10th Conference on Engineering Mechanics. Part 1 (of 2) - Boulder, CO, USA
Duration: May 21 1995May 24 1995

Other

OtherProceedings of the 10th Conference on Engineering Mechanics. Part 1 (of 2)
CityBoulder, CO, USA
Period5/21/955/24/95

ASJC Scopus subject areas

  • Architecture
  • Civil and Structural Engineering

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    Bazant, Z. P., Xiang, Y., & Ozbolt, J. (1995). Nonlocal microplane model for damage due to cracking. 694-697. Paper presented at Proceedings of the 10th Conference on Engineering Mechanics. Part 1 (of 2), Boulder, CO, USA, .