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RDF description of Cold hole expansion effect on the fatigue crack growth in welds of a 6061-T6 aluminum alloy - http://orbis.uaslp.mx/vivo/individual/scopus3883
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date: 2026-08-26T03:21:03
publisher: vivo
type: Document

Article
type: Class

Cold hole expansion effect on the fatigue crack growth in welds of a 6061-T6 aluminum alloy
type: Document
related by: authorship_22435
doi: 10.1016/j.jmatprotec.2014.05.030
estado: published
related by: authorship_22431
related by: authorship_22436
related by: authorship_22432
type: Continuant
issue: 11
e iscopus: 2-s2.0-84903142435
has publication venue: Journal of Materials Processing Technology
page start: 2606
type: Information Content Entity
volume: 214
crisid: 3884
page end: 2616
date time value: article date 3884
type: Thing
most specific type: Document
type: Article
abstract: Compact test specimens were extracted from a 6061-T6 aluminum alloy welded plate with a thickness of 9 mm to analyze the cold hole expansion effect on fatigue crack growth tests conducted in mode I cyclic loading. At R = 0.1, a sharp crack in base metal, weld metal and heat affected zone was propagated from 17 to 24 mm. The fatigue crack growth at 24 mm (α = a/W = 0.3) was delayed by drilling a hole at the crack tip and applying a cold hole expansion of 4.1%25. The residual stress fields due to cold hole expansion were determined with the finite element method. The fatigue crack growth testing was continued up to a crack length of 35 mm (α ∼ 0.43) at the same R, and crack opening displacements of the post-expansion crack were also determined with the finite element method. The results were expressed in terms of crack length versus number of cycles, as well as, fatigue crack growth rate as a function of applied and effective stress intensity factor range. The cold hole expansion contributed to delay the fatigue crack growth in base metal, and to a lesser extent in the weld metal and heat affected zone. A crack closure effect was determined by means of load versus crack opening displacement curves of the post-expansion crack, which was, completely or partially closed, in welded zones with compressive residual stress fields. The fracture surfaces of each welded zone were analyzed to elucidate the crack nucleation zone and its relation with the residual stress field. In all cases the crack was initiated at the surface of the specimen where the residual stresses were positive. © 2014 Elsevier B.V.
most specific type: Article
type: Entity
has funding vehicle: Consejo Nacional de Ciencia y Tecnología, CONACYT: CB177834
origen: scopus
related by: authorship_22433
freetext keyword: 6061-T6; Cold hole expansion; Fatigue crack growth; Finite element simulation; Welding Crack tips; Expansion; Fatigue crack propagation; Finite element method; Heat affected zone; Residual stresses; Stress intensity factors; Welded steel structures; Welding; Aluminum; Aluminum alloys; Crack tips; Cracks; Fatigue crack propagation; Finite element method; Heat affected zone; Metals; Residual stresses; Stress intensity factors; Stresses; Welded steel structures; Welding; Welds; 6061-T6; Cold hole expansion; Compressive residual stress; Crack opening displacement curves; Crack opening displacements; Effective stress intensity factor range; Fatigue-crack-growth tests; Finite element simulations; Cracks; Crack closure
related by: authorship_22434
type: Generically Dependent Continuant

Consejo Nacional de Ciencia y Tecnología, CONACYT: CB177834
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type: BFO_0000020
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funding vehicle for: Cold hole expansion effect on the fatigue crack growth in welds of a 6061-T6 aluminum alloy

Information Content Entity
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Journal of Materials Processing Technology
type: Continuant
type: Information Content Entity
publication venue for: Cold hole expansion effect on the fatigue crack growth in welds of a 6061-T6 aluminum alloy
type: Journal
type: Document
type: Generically Dependent Continuant
type: Periodical
type: Thing
type: Entity
type: Collection