Publication detail

Damage of multilayer polymer materials under creep loading

ZOUHAR, M. HUTAŘ, P. NÁHLÍK, L. KNÉSL, Z.

Original Title

Damage of multilayer polymer materials under creep loading

Type

journal article - other

Language

English

Original Abstract

Failure of layered materials is frequently caused by the existence of interfaces between single layers. In structures loaded by long-term constant stress the damage can be described on micro-scale by material changes due to active creep mechanism and at the macro-level by a corresponding change of the stress and strain field. In the contribution the behavior of a crack propagating through the interface is analyzed. Primary attention is devoted to a crack with its tip at the interface under creep exposition. The step change of material properties at the bi-material interface means that standard fracture mechanics access is not applicable and a modified approach based on generalization of the classical concept has to be used. The approach is illustrated on the damage of a plastic pipe with protective layer.

Keywords

CMOD, material interface, creep, fracture mechanics

Authors

ZOUHAR, M.; HUTAŘ, P.; NÁHLÍK, L.; KNÉSL, Z.

RIV year

2011

Released

5. 1. 2011

ISBN

1013-9826

Periodical

Key Engineering Materials (print)

Year of study

2011

Number

465

State

Swiss Confederation

Pages from

153

Pages to

156

Pages count

4

BibTex

@article{BUT49978,
  author="Michal {Zouhar} and Pavel {Hutař} and Luboš {Náhlík} and Zdeněk {Knésl}",
  title="Damage of multilayer polymer materials under creep loading",
  journal="Key Engineering Materials (print)",
  year="2011",
  volume="2011",
  number="465",
  pages="153--156",
  issn="1013-9826"
}