2006
DOI: 10.1016/j.mechmat.2005.12.003
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The influence of particle distribution and volume fraction on the post-necking behaviour of aluminium alloys

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Cited by 18 publications
(12 citation statements)
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“…The Fe content in these alloys influences the volume fraction of the coarse non-deformable constituent particles which are considered as strongly involved into the fracture process during bending by their role in voids formation [24,25]. Part of the excess Si is also consumed by those particles, but however the sufficiently high excess of Si in both alloys provides the further formation of strengthening phases.…”
Section: Discussionmentioning
confidence: 99%
“…The Fe content in these alloys influences the volume fraction of the coarse non-deformable constituent particles which are considered as strongly involved into the fracture process during bending by their role in voids formation [24,25]. Part of the excess Si is also consumed by those particles, but however the sufficiently high excess of Si in both alloys provides the further formation of strengthening phases.…”
Section: Discussionmentioning
confidence: 99%
“…Driven by strong weight reduction demands, there are also ongoing efforts to replace steel in automotive applications with low-weight aluminium alloys, especially the Al5xxx and Al6xxx series. These developments introduced new challenges to the industry (Sadagopan and Urban, 2003;Golovashchenko, 2005;Metzger et al, 2006).…”
Section: Introductionmentioning
confidence: 99%
“…Similar problems are also encountered with aluminium alloys. Metzger et al (2006), for example, reported significant differences in fracture behavior of direct chill cast and continuous cast Al-Mg alloys with identical necking limits. In addition, severe roughening and cracking are reported to be critical limitations for the hemming of some Al6xxx alloys (Golovashchenko, 2005).…”
Section: Introductionmentioning
confidence: 99%
“…Due to above mentioned problems, the predicted fracture strains, e.g. 0.48-0.51 for random distribution and 0.37-0.48 for stringer distribution (Metzger et al 2006), are much lower than those measured experimentally for CC and DC materials where the fracture strains are 0.7-0.9 for CC and 1.-1.5 for DC alloys with similar iron content of 0.21%. Further, the experimental observations from this RD × TD plane are similar for both alloys with random particles dominant distribution (DC) and alloys with stringer dominant particle distribution (CC).…”
Section: The Edge-constrained Plane Strain Post-necking Modelmentioning
confidence: 68%
“…The length scale in the nonlocal formulation, however, is usually chosen arbitrarily and a physical meaning is lacking. Metzger et al (2006) and Hu et al (2007) have also tried to use the unit-cell plane stress model to study the post-necking deformation and extract fracture strains from the models. In the work of Metzger et al (2006), a small unit-cell plane stress model containing 16 square particles was used to study the postnecking behavior.…”
Section: The Edge-constrained Plane Strain Post-necking Modelmentioning
confidence: 99%