N.K. Simha (Author), Franz Dieter Fischer (Author), Otmar Kolednik (Author), Jožef Predan (Author), G.X. Shan (Author)

Abstract

This paper describes a theoretical model and related computational methods forexamining the influence of inhomogeneous material properties on the crack driving force in elastic and elastic-plastic materials. Following the configurational forces approach, the crack tip shielding or anti-shielding dueto smooth (e.g. graded layer) and discontinuous (e.g. bimaterial interface)distributions in material properties are derived. Computational post-processing methods are described to evaluate these inhomogeneity effects.The utility of the theoretical model and computational methods is demonstrated by examining a bimaterial interface perpendicular to a crack in elastic and elastic-plastic compact tension specimens.

Keywords

lomna mehanika;lomna žilavost;kompoziti;slojeviti materiali;nehomogenost;razpoke;metoda končnih elementov;elastični bimateriali;fracture mechanics;fracture toughness;composite materials;layered material;inhomogeneity;cracks;finite element method;elastic bimaterials;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UM FS - Faculty of Mechanical Engineering
UDC: 539.3:519.61/.64
COBISS: 10400022 Link will open in a new window
ISSN: 0376-9429
Views: 1736
Downloads: 78
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Other data

Secondary language: English
Secondary keywords: lomna mehanika;lomna žilavost;kompoziti;slojeviti materiali;nehomogenost;razpoke;metoda končnih elementov;elastični bimateriali;
URN: URN:SI:UM:
Pages: str. 73-93
Volume: ǂVol. ǂ135
Issue: ǂiss. ǂ1/4
Chronology: 2005
ID: 8718382