Role of Deterministic and Statistical Length Scales in Size Effect for Quasibrittle Failure at Crack Initiation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F05%3APU50415" target="_blank" >RIV/00216305:26110/05:PU50415 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Role of Deterministic and Statistical Length Scales in Size Effect for Quasibrittle Failure at Crack Initiation

Original language description

An improved generalized law for combined energetic-probabilistic size effect on the nominal strength for structures failing by crack initiation from a smooth surface is used for practical purposes - the paper proposes a procedure to capture both deterministic and statistical size effects on the nominal strength of quasibrittle structures failing at crack initiation. The advantage of the proposed approach is that the necessity of time consuming statistical simulation is avoided, only deterministic nonlinnear fracture mechanics FEM calculation must be performed. Results of deterministic nonlinear FEM calculation should follow deterministic-energetic formula, a superimposition with the Weibull size effect, which dominates for large sizes using the energetic-statistical formula, is possible. As the procedure does not require a numerical simulation of Monte Carlo type and uses only the results obtained by deterministic computation using any commercial FEM code (which can capture satisfactor

Czech name

Role determistického a statistického délkového měřítka pro vliv velikosti konstrukce na pevnost při kvazikřwhkém porušení při inicializaci trhliny

Czech description

An improved generalized law for combined energetic-probabilistic size effect on the nominal strength for structures failing by crack initiation from a smooth surface is used for practical purposes - the paper proposes a procedure to capture both deterministic and statistical size effects on the nominal strength of quasibrittle structures failing at crack initiation. The advantage of the proposed approach is that the necessity of time consuming statistical simulation is avoided, only deterministic nonlinnear fracture mechanics FEM calculation must be performed. Results of deterministic nonlinear FEM calculation should follow deterministic-energetic formula, a superimposition with the Weibull size effect, which dominates for large sizes using the energetic-statistical formula, is possible. As the procedure does not require a numerical simulation of Monte Carlo type and uses only the results obtained by deterministic computation using any commercial FEM code (which can capture satisfactor

Type

D - Article in proceedings

CEP classification

JN - Civil engineering

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2005

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Safety and Reliability of Engineering Systems and Structures

ISBN

90-5966-040-4

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

73-80

Publisher name

Millpress Rotterdam

Place of publication

Netherlands

Event location

Rome, Italy

Event date

Jun 18, 2005

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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