Numerical Modeling of delayed activation and statistical size effect in multifilament yarns

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26110%2F05%3APU50334" target="_blank" >RIV/00216305:26110/05:PU50334 - 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

Numerical Modeling of delayed activation and statistical size effect in multifilament yarns

Original language description

The paper presents numerical studies of major sources of randomness as they occur in laboratory tensile tests of multi filament yarns of glass textile reinforcement for concrete. The main phe-nomenon under study is the length effect on the yarn tensile strength. The newly formulated de-terministic micromechanical model constitutes the stepping stone for stochastic simulation of strength and the whole response to tensile load. We study sources of randomness both across the yarn and along the filaments. TThe analyses are compared to theoretical and laboratory results. Emphasis is given to simulation of spatial variability of local strength by random fields and the existence of statistical length scales and modeling of slack induced by filament waviness.As the actual goal of the present work is to derive yarn characteristics relevant for crack bridges in ce-mentitious composites we systematically assess the significance of the studied sources of disorder in the context of extremely short

Czech name

Numerické modelování zpožděné aktivace a statistického vlivu velikosti mnohovláknitých svazků

Czech description

The paper presents numerical studies of major sources of randomness as they occur in laboratory tensile tests of multi filament yarns of glass textile reinforcement for concrete. The main phe-nomenon under study is the length effect on the yarn tensile strength. The newly formulated de-terministic micromechanical model constitutes the stepping stone for stochastic simulation of strength and the whole response to tensile load. We study sources of randomness both across the yarn and along the filaments. TThe analyses are compared to theoretical and laboratory results. Emphasis is given to simulation of spatial variability of local strength by random fields and the existence of statistical length scales and modeling of slack induced by filament waviness.As the actual goal of the present work is to derive yarn characteristics relevant for crack bridges in ce-mentitious composites we systematically assess the significance of the studied sources of disorder in the context of extremely short

Type

D - Article in proceedings

CEP classification

JN - Civil engineering

OECD FORD branch

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Project

<a href="/en/project/1K04110" target="_blank" >1K04110: Statistical aspects of size effect influence on reliability of concrete structures</a><br>

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

2nd International Symposium NON-TRADITIONAL CEMENT & CONCRETE

ISBN

80-214-2853-8

ISSN

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e-ISSN

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Number of pages

11

Pages from-to

439-449

Publisher name

VUT v Brně

Place of publication

Brno

Event location

Brno, Hotel Continental

Event date

Jun 14, 2005

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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