Reference : Experimental characterization and elasto-plastic modeling of the quasi-static mechanical...
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/2268/82420
Experimental characterization and elasto-plastic modeling of the quasi-static mechanical response of TA-6 V at room temperature
English
Gilles, Gaëtan mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > Département Argenco : Secteur MS2F >]
Hammami, Walid mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > Département Argenco : Secteur MS2F >]
Libertiaux, Vincent mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > Mécanique des solides >]
Cazacu, O. [> >]
Yoon, J. H. [> >]
Habraken, Anne mailto [Université de Liège - ULg > Département ArGEnCo > Département ArGEnCo >]
Duchene, Laurent mailto [Université de Liège - ULg > Département Argenco : Secteur MS2F > Département Argenco : Secteur MS2F >]
2011
International Journal of Solids & Structures
Pergamon Press - An Imprint of Elsevier Science
48
9
1277–1289
Yes (verified by ORBi)
International
0020-7683
Oxford
United Kingdom
[en] TA-6V titanium alloy ; anisotropic material ; tension-compression asymmetry ; anisotropic yield function ; LIMARC
[en] The paper presents an experimental study of the quasi-static deformation behavior of a TA-6V in sheet form. To quantify the plastic anisotropy and the tension-compression asymmetry of this material at room temperature, monotonic tensile and compressive tests were carried out on specimens cut out along several orientations in the plane of the sheet. It was observed that although the tensile flow stress anisotropy is very mild, the Lankford coefficients’ anisotropy is very pronounced. To describe the observed mechanical response an elastic/plastic approach was used. Yielding was described using a
family of yield criteria that account for strength differential effects and allow an improved description of the anisotropy and its evolution through multiple linear transformations. Comparisons between uniaxial monotonic data and FE simulations using the model show a very good agreement.
http://hdl.handle.net/2268/82420
10.1016/j.ijsolstr.2011.01.011
Available online at www.sciencedirect.com
Copyright © 2011 Published by Elsevier Ltd.

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