Nenad Gubeljak (Author), Jožef Predan (Author), Reinhard Pippan (Author), Maks Oblak (Author)

Abstract

The effect of residual stress on the fatigue crack growth was investigated forcyclic tension. Three-point bend specimens were used with through thicknessnotches at the center line of the welded joint. The experiments were performed for different load amplitudes and load ratios under conditions of small-scale yielding. The influence of the residual stresses on fatigue crack growth was estimated by experimentally observed fatigue crack growth rate and measurement of residual stresses at the surface of specimen. This paper describes an approach taken in two models to estimate the residual stress effect on fatigue crack propagation and to predict remaining service life of awelded structure.

Keywords

lomna mehanika;utrujenostna razpoka;širjenje razpoke;zaostale napetosti;stopnja rasti razpoke;fracture mechnaics;fatigue crack;crack growth;residual stresses;fatigue crack growh rate;X-ray;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FS - Faculty of Mechanical Engineering
UDC: 539.42:620.17
COBISS: 9785878 Link will open in a new window
ISSN: Y505-8627
Views: 1535
Downloads: 78
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Other data

Secondary language: English
Secondary keywords: lomna mehanika;utrujenostna razpoka;širjenje razpoke;zaostale napetosti;stopnja rasti razpoke;
URN: URN:SI:UM:
Pages: JAI12036/18 f.
Volume: ǂVol. ǂ2
Issue: ǂno. ǂ3
Chronology: Mar. 2005
Keywords (UDC): mathematics;natural sciences;naravoslovne vede;matematika;physics;fizika;physical nature of matter;fizikalna zgradba snovi;strength;resistance to stress;trdnost;trdnost pri obremenitvah;applied sciences;medicine;technology;uporabne znanosti;medicina;tehnika;engineering;technology in general;inženirstvo;tehnologija na splošno;materials testing;commercial materials;power stations;economics of energy;preiskava materiala;blagoznanstvo;energetske centrale;energetika;
ID: 12087