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VOŘECHOVSKÝ, M. NOVÁK, D. BAŽANT, Z.
Originální název
Asymptotic prediction of energetic-statistical size effects from deterministic finite-element solutions
Typ
článek v časopise - ostatní, Jost
Jazyk
angličtina
Originální abstrakt
An improved form of a recently derived energetic-statistical formula for size effect on the strength of quasibrittle structures failing at crack initiation is presented and exploited to perform stochastic structural analysis without the burden of stochastic nonlinear finite-element simulations. The characteristics length for the statistical term in this formula is deduced by considering the limiting case of the energetic part of size effect for a vanishing thickness of the boundary layer of cracking. A simple elastic analysis of stress field provides the large-size asymptotic deterministic strength, and also allows evaluating the Weilbull probability integral which yields the mean strength according to the purely statistical Weilbull theory. A deterministic plastic limit analysis of an elastic body with a throughcrack imagined to be filled by a perfectly plastic" glue" is used to obtain the small-size effect.
Klíčová slova
Autoři
VOŘECHOVSKÝ, M.; NOVÁK, D.; BAŽANT, Z.
Rok RIV
2007
Vydáno
1. 2. 2007
Nakladatel
ASCE
Místo
USA
ISSN
0733-9399
Periodikum
Journal of Engineering Mechanics
Ročník
133
Číslo
2
Stát
Spojené státy americké
Strany od
153
Strany do
162
Strany počet
10
BibTex
@article{BUT44316, author="Miroslav {Vořechovský} and Drahomír {Novák} and Zdeněk P. {Bažant}", title="Asymptotic prediction of energetic-statistical size effects from deterministic finite-element solutions", journal="Journal of Engineering Mechanics", year="2007", volume="133", number="2", pages="153--162", issn="0733-9399" }