Detail publikace

Analysis of Fatigue Crack Growth under the Spectrum Loading

AUGUSTIN, P.

Originální název

Analysis of Fatigue Crack Growth under the Spectrum Loading

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

This article describes the methodology of numerical simulation of fatigue crack growth under the spectrum loading and its application on integrally stiffened panels manufactured using high speed cutting. A load sequence generated from the spectrum of B737 airplane similar to the standardized load sequence for flight simulation tests on transport aircraft wing structures TWIST was applied. The methodology starts by the determination of stress intensity factors from FEM results using crack closure technique. Subsequent crack growth analysis is done in NASGRO and uses a description of crack growth rates by the Forman-Newman-de Koning relationship. Two crack growth models were tested: non interaction and Willenborg model. Verification of analyses was based on tests of integral panels and CCT specimens performed under the spectrum loading at the IAE laboratory. In order to determine crack growth rate data, additional tests on CCT specimens using the constant amplitude loading were also carried out.

Klíčová slova

crack growth, spectrum loading, fatigue, fracture mechanics, integrally stiffened panels

Autoři

AUGUSTIN, P.

Rok RIV

2007

Vydáno

1. 11. 2007

ISSN

1211-877X

Periodikum

Letecký zpravodaj

Ročník

2007

Číslo

3

Stát

Česká republika

Strany od

18

Strany do

21

Strany počet

4

BibTex

@article{BUT45327,
  author="Petr {Augustin}",
  title="Analysis of Fatigue Crack Growth under the Spectrum Loading",
  journal="Letecký zpravodaj",
  year="2007",
  volume="2007",
  number="3",
  pages="4",
  issn="1211-877X"
}