000130798 001__ 130798
000130798 005__ 20181203021412.0
000130798 0247_ $$2doi$$a10.1016/j.msea.2008.05.036
000130798 02470 $$2DAR$$a13738
000130798 02470 $$a000260639400049$$2ISI
000130798 037__ $$aARTICLE
000130798 245__ $$aFracture behavior of low-density replicated aluminum alloy foams
000130798 269__ $$a2008
000130798 260__ $$c2008
000130798 336__ $$aJournal Articles
000130798 520__ $$aTensile tests have been performed on replicated aluminum alloy foams of relative density between 4.5% and 8%. During the test the electrical resistance was measured with a four-point set-up and the displacements along the gage section were measured using a digital image correlation (DIC) technique. Right from the start of the tensile test, the strain as observed at the surface with DIC is not uniformly distributed over the sample, but concentrates in bands; this is attributed to density variations. The peak strain, i.e. the strain at the ultimate tensile strength (UTS), increases with decreasing density for densities below 5.5%. For densities above 5.5% fracture occurs in the band with the highest strain, yielding a roughly constant peak strain (near 1.5%). Resistivity data indicate an increased contribution of strut bending compared to stretching for densities below 5.5%, causing a decreased rate of damage accumulation and an increase in the tolerance to damage. Incremental strain maps show that the increased damage tolerance in the low-density samples allows initially formed deformation bands to harden resulting in multiple bands to be involved in the fracture process. (C) 2008 Elsevier B.V. All rights reserved.
000130798 700__ $$aAmsterdam, E.
000130798 700__ $$0240492$$g163887$$aGoodall, R.
000130798 700__ $$0240159$$g112836$$aMortensen, A.
000130798 700__ $$aOnck, P. R.
000130798 700__ $$aDe Hosson, J. T. M.
000130798 773__ $$j496$$tMaterials Science And Engineering A-Structural Materials Properties Microstructure And Processing$$k1-2$$q376-382
000130798 909C0 $$xU10336$$0252046$$pLMM
000130798 909CO $$pSTI$$particle$$ooai:infoscience.tind.io:130798
000130798 937__ $$aLMM-ARTICLE-2008-018
000130798 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000130798 980__ $$aARTICLE