Computation of Probability Distribution of Strength of Quasibrittle Structures Failing at Macrocrack Initiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F12%3APU102840" target="_blank" >RIV/00216305:26110/12:PU102840 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Computation of Probability Distribution of Strength of Quasibrittle Structures Failing at Macrocrack Initiation

Popis výsledku v původním jazyce

Engineering structures must be designed for an extremely low failure probability, i.e. Pf < 10-6. To determine the structural strength corresponding to such a low failure probability, a physical model of the probability distribution of structural strength is required. Recent study showed that the strength distribution of quasibrittle structures, which fail at the macro-crack initiation from one representative volume element (RVE), can be statistically modeled as a finite chain of RVEs. It has been further demonstrated that, based on atomistic fracture mechanics and a statistical multi-scale transition model, the strength distribution of each RVE can be approximately described by a Gaussian distribution, onto which a Weibull tail is grafted from the far-left end a point of the probability of about 10-4 to 10-3. The model implies that the strength distribution of quasibrittle structures depends on the structure size, varying from the Gaussian distribution modified by a far-left Weibull t

Název v anglickém jazyce

Computation of Probability Distribution of Strength of Quasibrittle Structures Failing at Macrocrack Initiation

Popis výsledku anglicky

Engineering structures must be designed for an extremely low failure probability, i.e. Pf < 10-6. To determine the structural strength corresponding to such a low failure probability, a physical model of the probability distribution of structural strength is required. Recent study showed that the strength distribution of quasibrittle structures, which fail at the macro-crack initiation from one representative volume element (RVE), can be statistically modeled as a finite chain of RVEs. It has been further demonstrated that, based on atomistic fracture mechanics and a statistical multi-scale transition model, the strength distribution of each RVE can be approximately described by a Gaussian distribution, onto which a Weibull tail is grafted from the far-left end a point of the probability of about 10-4 to 10-3. The model implies that the strength distribution of quasibrittle structures depends on the structure size, varying from the Gaussian distribution modified by a far-left Weibull t

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JM - Inženýrské stavitelství

OECD FORD obor

—

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Journal of Engineering Mechanics

ISSN

0733-9399

e-ISSN

—

Svazek periodika

138

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

888-899

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—