Publication result detail

Prediction of Crack Growth in Integrally Stiffened Panels

AUGUSTIN, P.

Original Title

Prediction of Crack Growth in Integrally Stiffened Panels

English Title

Prediction of Crack Growth in Integrally Stiffened Panels

Type

Peer-reviewed article not indexed in WoS or Scopus

Original Abstract

Application of new production methods such as High Speed Cutting (HSC), Laser Beam Welding or Friction Stir Welding in the aerospace industry leads to the reduction of manufacturing costs. Structures designed for these production techniques are typical by an integral character. A comparison of their behavior with differentially stiffened designs shows the lack of damage tolerance characteristics and that is why this topic is investigated. The paper presents methodology of crack growth analysis used at Institute of Aerospace Engineering (IAE) for assessment of integrally stiffened panels manufactured using HSC. The approach is based on stress intensities calculated from FE method results and crack propagation analysis performed in NASGRO. In the case of two-stringer integral HSC panel, a good correspondence with experimentally determined crack propagation curves was obtained.

English abstract

Application of new production methods such as High Speed Cutting (HSC), Laser Beam Welding or Friction Stir Welding in the aerospace industry leads to the reduction of manufacturing costs. Structures designed for these production techniques are typical by an integral character. A comparison of their behavior with differentially stiffened designs shows the lack of damage tolerance characteristics and that is why this topic is investigated. The paper presents methodology of crack growth analysis used at Institute of Aerospace Engineering (IAE) for assessment of integrally stiffened panels manufactured using HSC. The approach is based on stress intensities calculated from FE method results and crack propagation analysis performed in NASGRO. In the case of two-stringer integral HSC panel, a good correspondence with experimentally determined crack propagation curves was obtained.

Keywords

integrally stiffened panels, crack growth, damage tolerance, fatigue, fracture mechanic

Key words in English

integrally stiffened panels, crack growth, damage tolerance, fatigue, fracture mechanic

Authors

AUGUSTIN, P.

Released

01.07.2007

ISBN

1211-877X

Periodical

Letecký zpravodaj

Volume

2007

Number

2

State

Czech Republic

Pages from

5

Pages count

3

BibTex

@article{BUT45326,
  author="Petr {Augustin}",
  title="Prediction of Crack Growth in Integrally Stiffened Panels",
  journal="Letecký zpravodaj",
  year="2007",
  volume="2007",
  number="2",
  pages="3",
  issn="1211-877X"
}