Publication detail

Application of Statistical Concept of Roughness-Induced Crack Closure to Titanium and Aluminium Alloys

POKLUDA, J. ŠANDERA, P. HORNÍKOVÁ, J.

Czech title

Aplikace statistického konceptu drsnostně indukovaného zavírání trhliny pro titanové a hliníkové slitiny

English title

Application of Statistical Concept of Roughness-Induced Crack Closure to Titanium and Aluminium Alloys

Type

conference paper

Language

en

Original abstract

A statistical concept based on the local ratio between the characteristic microstucture distance and the plastic zone size is used to estimate the contribution of the roughness-induced crack closure (RIC). In this analysis, only standard materials data are necessary as the yield stress, the mean characteristic microstructure size, the surface roughness and the fracture mode, respectively. Values of the RIC component of the total closure effect were calculated for alpha-titanium, Ti-2.5wt%Cu alloy and 7475 aluminum alloy with different microstructures and for various load ratios.

English abstract

A statistical concept based on the local ratio between the characteristic microstucture distance and the plastic zone size is used to estimate the contribution of the roughness-induced crack closure (RIC). In this analysis, only standard materials data are necessary as the yield stress, the mean characteristic microstructure size, the surface roughness and the fracture mode, respectively. Values of the RIC component of the total closure effect were calculated for alpha-titanium, Ti-2.5wt%Cu alloy and 7475 aluminum alloy with different microstructures and for various load ratios.

Keywords in English

statistical concept, plastic zone, roughness-induced crack closure, closure effect

RIV year

2002

Released

01.01.2002

Publisher

EMAS

Location

Stockholm

ISBN

1-901537-32-3

Book

Fatigue 02

Edition number

1

Pages count

8

BIBTEX


@inproceedings{BUT10292,
  author="Jaroslav {Pokluda} and Pavel {Šandera} and Jana {Horníková},
  title="Application of Statistical Concept of Roughness-Induced Crack Closure to Titanium and Aluminium Alloys",
  booktitle="Fatigue 02",
  year="2002",
  month="January",
  publisher="EMAS",
  address="Stockholm",
  isbn="1-901537-32-3"
}