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Title: Modelling of the multiaxial elasto-plastic behaviour of porous metals with internal gas pressure
Keywords: Porous material;Cellular material;Internal gas pressure;Unit-cell model;Plasticity;Finite element method
Description: Oechsner, A; Mishuris, G. (2009). Modelling of the multiaxial elasto-plastic behaviour of porous metals with internal gas pressure. Finite Elements in Analysis and Design, 45 (2), 104-112 Sponsorship: G. Mishuris participated in this research during his Visiting Fellowship at LSBU granted by the Leverhulme Trust.;The gas pressure built up within closed cells of porous or cellular metals influences the macroscopic behaviour during deformation. Another important process affected by internal pore pressure is the roll forming of structurally porous metals. During pressing and thermo-mechanical forming, the internal pressure of the pores and the temperature can rise to high levels. In this paper, the influence of the internal gas pressure on the mechanical behaviour of porous metals under different loading conditions is numerically investigated by the finite element method. It has been found that the internal gas pressure significantly influences the initial yielding as well as the macroscopic behaviour if the pressure is clearly less than a half of the yield strength of the base material. This can be found in scientific literature as a limit for a significant influence.;Peer reviewed
URI: http://localhost/handle/2160/3329
Other Identifiers: Oechsner , A & Mishuris , G 2009 , ' Modelling of the multiaxial elasto-plastic behaviour of porous metals with internal gas pressure ' Finite Elements in Analysis and Design , vol 45 , no. 2 , pp. 104-112 . DOI: 10.1016/j.finel.2008.07.007
1872-6925
PURE: 125376
PURE UUID: 38a8a6a3-8ed2-4d64-9e91-eff6e93b9e1f
dspace: 2160/3329
RAD_Outputs_All_ID_Import_20121105.csv: row: 2481
Scopus: 56949093294
http://hdl.handle.net/2160/3329
https://doi.org/10.1016/j.finel.2008.07.007
Type Of Material: /dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article
Appears in Collections:Mathematics & Physics

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