Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Fatigue crack propagation in Ti-6Al-4V subjected to high strain amplitudes

In English

Författare

Summary, in English

Fatigue crack propagation in circular Ti-6Al-4V specimens subjected to high strain amplitudes has been investigated. Crack closure was measured with an electrical potential-drop technique. Closure was shown not to depend on strain ratio but to be a function of the applied strain range. At higher strain ranges, the crack was found to be closed for a smaller part of the load cycle than at lower strain ranges due to blunting of the crack tip. Furthermore, the use of a strain-intensity approach to predict crack-propagation rate was investigated, and it was found that for the upper parts of the da/dN curves the effective strain intensity yields good predictions. Also, the effective stress-intensity factor was found to collapse the da/dN curves for different load ratios.

Publiceringsår

2005

Språk

Engelska

Sidor

301-308

Publikation/Tidskrift/Serie

Fatigue & Fracture of Engineering Materials & Structures

Volym

28

Issue

3

Dokumenttyp

Artikel i tidskrift

Förlag

Wiley-Blackwell

Ämne

  • Applied Mechanics
  • Materials Engineering

Nyckelord

  • crack propagation
  • fatigue
  • crack closure
  • strain-intensity factor

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1460-2695