Probabilistic mechanics of quasibrittle structures: Strength, lifetime and scaling

Zdenek P Bazant, Jia Liang Le

Research output: Contribution to conferencePaper

Abstract

This lecture presents a recently developed probabilistic theory of strength of quasibrittle structures. The theory is anchored by a finite weakest-link model, in which the strength distribution of one representative volume element (RVE) is determined from the atomistic fracture mechanics and a multiscale statistical model. With the fracture kinetics model, the theory is further extended to probability distributions of structural lifetime under both static and cyclic fatigue. The theory predicts intricate size effects on the strength and lifetime distributions, and on the mean structural strength and lifetime. Such size dependence also has profound implications for reliability-based analysis and design of quasibrittle structures.

Original languageEnglish (US)
Pages496-497
Number of pages2
StatePublished - Jan 1 2017
Event14th International Conference on Fracture, ICF 2017 - Rhodes, Greece
Duration: Jun 18 2017Jun 20 2017

Conference

Conference14th International Conference on Fracture, ICF 2017
CountryGreece
CityRhodes
Period6/18/176/20/17

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

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  • Cite this

    Bazant, Z. P., & Le, J. L. (2017). Probabilistic mechanics of quasibrittle structures: Strength, lifetime and scaling. 496-497. Paper presented at 14th International Conference on Fracture, ICF 2017, Rhodes, Greece.