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VOŘECHOVSKÝ, M. CHUDOBA, R.
Original Title
Stochastic modeling of multi-filament yarns: II. Random properties over the length and size effect
Type
journal article - other
Language
English
Original Abstract
The present study addresses the influence of variations in materialproperties along the multi-filament yarn on the overall response inthe tensile test. In Part I we have described the applied model andstudied the influence of scatter of material characteristics varyingin the cross section with no variations along the filaments.In particular, we analyzed the influence of varying cross sectionalarea, filament length and delayed activation. Inclusion of theseeffects has lead to a better interpretation of the experimental data,especially with respect to the gradual stiffness activation,post-peak behavior and some form of size effect. In the present paper, thelength-related distributions of local stiffness and strength are includedin terms of theoretical considerations and by applying the Monte Carlo typesimulation of random fields.Suchan approach allows us (1) to demonstrate the strong need forincluding length scale to random fluctuation of strength along thefilaments and (2) to combine several sources of randomness in asingle analysis so that their significance can be evaluated from thetensile test response.
Keywords
Multi-filament yarn; Fiber bundle models; Random field simulation; Delayed activation; Size effect
Authors
VOŘECHOVSKÝ, M.; CHUDOBA, R.
RIV year
2006
Released
1. 2. 2006
Publisher
Elsevier
Location
USA
ISBN
0020-7683
Periodical
International Journal of Solids and Structures
Year of study
2006 (43)
Number
3-4
State
United Kingdom of Great Britain and Northern Ireland
Pages from
435
Pages to
458
Pages count
24
BibTex
@article{BUT46409, author="Miroslav {Vořechovský} and Rostislav {Chudoba}", title="Stochastic modeling of multi-filament yarns: II. Random properties over the length and size effect", journal="International Journal of Solids and Structures", year="2006", volume="2006 (43)", number="3-4", pages="435--458", issn="0020-7683" }