Publication detail

The Reference Crack Growth Rate: An Unifying Concept for Fatigue under Variable Amplitude Loading

LAUSCHMANN, H. AUGUSTIN, P. KOVÁŘÍK, O. ŠIŠKA, F.

Original Title

The Reference Crack Growth Rate: An Unifying Concept for Fatigue under Variable Amplitude Loading

Type

conference paper

Language

English

Original Abstract

A new concept of reference crack growth rate (RCGR) was proposed to cover all fatigue cracks regardless of the type of loading. The general idea has got a practical scope within textural fractography. The first suggestion of RCGR was based on cycle-by-cycle crack growth description. However, RCGR may be estimated directly from images of fracture surfaces. Both approaches are demonstrated in application - fractographical reconstitution of crack growth process in aluminium alloy. Two pairs of CCT specimen and panel were loaded by constant cycle and a flight spectrum, respectively. Common morphologic features of all fracture surfaces were found that are closely related to RCGR.

Keywords

fatigue under variable cycle loading, reference crack growth rate, fractographical reconstitution of crack growth history, image textural analysis

Authors

LAUSCHMANN, H.; AUGUSTIN, P.; KOVÁŘÍK, O.; ŠIŠKA, F.

RIV year

2009

Released

23. 3. 2009

Publisher

Deutscher Verband für Materialforschung und -prüfung

Location

Darmstadt

ISBN

978-3-00-027049-9

Book

Proceedings of the Second International Conference on Material and Component Performance under Variable Amplitude Loading

Pages from

271

Pages to

280

Pages count

10

BibTex

@inproceedings{BUT32926,
  author="LAUSCHMANN, H. and AUGUSTIN, P. and KOVÁŘÍK, O. and ŠIŠKA, F.",
  title="The Reference Crack Growth Rate: An Unifying Concept for Fatigue under Variable Amplitude Loading",
  booktitle="Proceedings of the Second International Conference on Material and Component Performance under Variable Amplitude Loading",
  year="2009",
  pages="271--280",
  publisher="Deutscher Verband für Materialforschung und -prüfung",
  address="Darmstadt",
  isbn="978-3-00-027049-9"
}