Uncertainties of material properties in nonlinear computer simulation

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F06%3APU63944" target="_blank" >RIV/00216305:26110/06:PU63944 - 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

Uncertainties of material properties in nonlinear computer simulation

Original language description

Nonlinear finite element method and advanced stochastic package were coupled in order to account uncertainties, randomness and spatial variability of material properties in computer simulation of structural behaviour and failure. The nonlinear FE programATENA contains advanced constitutive models for concrete based on damage mechanics, fracture mechanics and plasticity theories with smeared crack approach. The advanced stochastic simulation software FREET is employed for the stochastic treatment. New and updated (significantly improved) methods were developed and verified in the simulation of uncertainties, e.g. small-sample simulation of Monte carlo type Latin hypercube sampling for both random variables and random fields with focus on correlation control among variables, accurate representation of random fields based on spectral decomposition of covariance matrix and employing very small number of underlying random variables, hierarchical nonlinear material models etc.

Czech name

Uncertainties of material properties in nonlinear computer simulation

Czech description

Nonlinear finite element method and advanced stochastic package were coupled in order to account uncertainties, randomness and spatial variability of material properties in computer simulation of structural behaviour and failure. The nonlinear FE programATENA contains advanced constitutive models for concrete based on damage mechanics, fracture mechanics and plasticity theories with smeared crack approach. The advanced stochastic simulation software FREET is employed for the stochastic treatment. New and updated (significantly improved) methods were developed and verified in the simulation of uncertainties, e.g. small-sample simulation of Monte carlo type Latin hypercube sampling for both random variables and random fields with focus on correlation control among variables, accurate representation of random fields based on spectral decomposition of covariance matrix and employing very small number of underlying random variables, hierarchical nonlinear material models etc.

Type

D - Article in proceedings

CEP classification

JN - Civil engineering

OECD FORD branch

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Project

<a href="/en/project/1ET409870411" target="_blank" >1ET409870411: VITESPO-Virtual testing of safety and reliability of structures</a><br>

Continuities

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

Publication year

2006

Confidentiality

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

Article name in the collection

International probabilistic Symposium

ISBN

3-00-019232-8

ISSN

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e-ISSN

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Number of pages

12

Pages from-to

127-138

Publisher name

Neuveden

Place of publication

Berlin, Germany

Event location

Berlin

Event date

Oct 12, 2006

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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