Publication result detail

EVALUATION OF THE FATIGUE THRESHOLD OF COATED STRUCTURES

KNÉSL, Z.; BAREŠ, P.; NÁHLÍK, L.

Original Title

EVALUATION OF THE FATIGUE THRESHOLD OF COATED STRUCTURES

English Title

EVALUATION OF THE FATIGUE THRESHOLD OF COATED STRUCTURES

Type

Paper in proceedings (conference paper)

Original Abstract

The resistance of coated structures to fatigue failure of substrate is investigated. In order to quantify the influence of elastic mismatch of coating and substrate on the fatigue threshold applied stress, a simplified approach based on calculations of crack mouth opening displacement CMOD has been suggested. It is concluded that the resistance of the substrate to fatigue damage significantly decreases for cases of hard coatings on a stiffer substrate. Traditional approaches may have underestimated the effect and estimations of the residual fatigue life of coated structures neglecting this fact could lead to non-conservative values and thus cause unexpected failures.

English abstract

The resistance of coated structures to fatigue failure of substrate is investigated. In order to quantify the influence of elastic mismatch of coating and substrate on the fatigue threshold applied stress, a simplified approach based on calculations of crack mouth opening displacement CMOD has been suggested. It is concluded that the resistance of the substrate to fatigue damage significantly decreases for cases of hard coatings on a stiffer substrate. Traditional approaches may have underestimated the effect and estimations of the residual fatigue life of coated structures neglecting this fact could lead to non-conservative values and thus cause unexpected failures.

Keywords

crack mouth opening displacement, crack propagtion, bimaterial interface

Key words in English

crack mouth opening displacement, crack propagtion, bimaterial interface

Authors

KNÉSL, Z.; BAREŠ, P.; NÁHLÍK, L.

Released

01.08.2005

Location

Tenerife, Canary Islands

Book

ICCE-12 Twelth Annual International Conference on Composites/Nano Engineering

Pages from

153

Pages to

154

Pages count

2

BibTex

@inproceedings{BUT21716,
  author="Zdeněk {Knésl} and Pavel {Bareš} and Luboš {Náhlík}",
  title="EVALUATION OF THE FATIGUE THRESHOLD OF COATED STRUCTURES",
  booktitle="ICCE-12 Twelth Annual International Conference on Composites/Nano Engineering",
  year="2005",
  pages="153--154",
  address="Tenerife, Canary Islands"
}