Publication detail

Stochastic modeling of multi-filament yarns: II. Random properties over the length and size effect

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"
}