Detail publikačního výsledku

Toughness of brittle–matrix composites with heterogeneous reinforcement

RYPL, R.; VOŘECHOVSKÝ, M.; CHUDOBA, R.

Originální název

Toughness of brittle–matrix composites with heterogeneous reinforcement

Anglický název

Toughness of brittle–matrix composites with heterogeneous reinforcement

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

Elastic properties of fibrous composites are conveniently modeled by rules of mixtures which appropriately combine the elastic properties of individual constituents and allow for a homogenized representation of the composite behavior. However, elasticity may be lost at load levels far below the ultimate performance of the composite due to matrix and/or fiber damage and fiber debonding. It has been proved that statistical-mechanical models perform well for the inelastic range of composites mechanics. This article describes a statistical-mechanical model which introduces the possibility to simulate heterogeneity in bond properties. The model is appropriate e.g. for the newly developed composite material textile reinforced concrete (TRC), where the bond heterogeneity is caused by irregular penetration of the cementitious matrix into the structure of reinforcing multifilament yarns. It is shown that the heterogeneous bond significantly reduces the composite strength.

Anglický abstrakt

Elastic properties of fibrous composites are conveniently modeled by rules of mixtures which appropriately combine the elastic properties of individual constituents and allow for a homogenized representation of the composite behavior. However, elasticity may be lost at load levels far below the ultimate performance of the composite due to matrix and/or fiber damage and fiber debonding. It has been proved that statistical-mechanical models perform well for the inelastic range of composites mechanics. This article describes a statistical-mechanical model which introduces the possibility to simulate heterogeneity in bond properties. The model is appropriate e.g. for the newly developed composite material textile reinforced concrete (TRC), where the bond heterogeneity is caused by irregular penetration of the cementitious matrix into the structure of reinforcing multifilament yarns. It is shown that the heterogeneous bond significantly reduces the composite strength.

Klíčová slova

composite strength; composite toughness; heterogeneous reinforcement; Weibull statistics; fiber damage; probabilistic analysis

Klíčová slova v angličtině

composite strength; composite toughness; heterogeneous reinforcement; Weibull statistics; fiber damage; probabilistic analysis

Autoři

RYPL, R.; VOŘECHOVSKÝ, M.; CHUDOBA, R.

Rok RIV

2015

Vydáno

01.06.2014

Nakladatel

ELSEVIER

Místo

USA

ISBN

9781632669094

Kniha

Procedia Materials Science

ISSN

2211-8128

Periodikum

Procedia Materials Science

Svazek

2014

Číslo

3

Stát

Nizozemsko

Strany od

2168

Strany do

2173

Strany počet

6

BibTex

@inproceedings{BUT112450,
  author="Rostislav {Rypl} and Miroslav {Vořechovský} and Rostislav {Chudoba}",
  title="Toughness of brittle–matrix composites with heterogeneous reinforcement",
  booktitle="Procedia Materials Science",
  year="2014",
  journal="Procedia Materials Science",
  volume="2014",
  number="3",
  pages="2168--2173",
  publisher="ELSEVIER",
  address="USA",
  doi="10.1016/j.mspro.2014.06.351",
  isbn="9781632669094",
  issn="2211-8128"
}