SIZE EFFECT IN BRITTLE FAILURE OF UNREINFORCED PIPES.

Zdenek P. Bazant*, Zhiping Cao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Scopus citations

Abstract

Unreinforced concrete pipes basically can fail in two modes: beam failure and ring failure. According to the existing test data, the nominal stress at beam failure is much less than that at ring failure. Furthermore, the nominal stress for either failure mode decreases as the pipe diameter or thickness increases. These size effects can be described in a unified manner by means of the recently established size-effect law for failures which are preceded by the formation of microcracking zones. A simple formula involving the size effect is proposed and is justified by comparisons with existing test data.

Original languageEnglish (US)
Pages (from-to)369-373
Number of pages5
JournalJournal of the American Concrete Institute
Volume83
Issue number3
StatePublished - May 1986

ASJC Scopus subject areas

  • Engineering(all)

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