Loading...
Search for:
weber--l
0.016 seconds
Damage evolution in Saffil alumina short-fibre reinforced aluminium during tensile testing
, Article Materials Science and Engineering A ; Volume 395, Issue 1-2 , 2005 , Pages 27-34 ; 09215093 (ISSN) ; Weber, L ; Mortensen, A ; Sharif University of Technology
2005
Abstract
The evolution of microstructural damage during tensile deformation of pure aluminium reinforced with 10 vol.% alumina short fibres is studied by monitoring the evolution of density and Young's modulus as a function of tensile strain. It is found that Young's modulus drops rapidly until a strain εc ≈ 3%. The composite density remains virtually unchanged in this strain range. At strains above εc, Young's modulus decreases more slowly while the density begins to decrease linearly, indicating void growth in the composite. It is shown that the drop in Young's modulus is linked to fragmentation of fibres aligned along the stress axis, while the decrease in density is related to void opening across...
Tensile behaviour and ductility of 10 vol.-% Saffil short fibre reinforced aluminium
, Article Materials Science and Technology ; Volume 20, Issue 12 , 2004 , Pages 1645-1648 ; 02670836 (ISSN) ; Nategh, S ; Weber, L ; Sharif University of Technology
2004
Abstract
The tensile behaviour of Saffil short fibre reinforced aluminium composites has been investigated in terms of Young's modulus, yield strength, ultimate tensile strength, and strain to failure. A rationale is given for the unusually high strain to failure found in this material by applying a failure criterion based on damage accumulation, recently developed for particulate reinforced MMCs