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Title:Crack tip shielding or anti-shielding due to smooth and discontinuous material inhomogeneities
Authors:Simha, N.K. (Author)
Fischer, Franz Dieter (Author)
Kolednik, Otmar (Author)
Predan, Jožef (Author)
Shan, G.X. (Author)
Files:URL http://dx.doi.org/10.1007/s10704-005-3944-5
Work type:Unknown ()
Typology:1.01 - Original Scientific Article
Organization:FS - Faculty of Mechanical Engineering
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:fracture mechanics, fracture toughness, composite materials, layered material, inhomogeneity, cracks, finite element method, elastic bimaterials
Year of publishing:2005
ISSN on article:0376-9429
COBISS_ID:10400022 Link is opened in a new window
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Record is a part of a journal

Title:International journal of fracture
Shortened title:Int. j. fract.
Publisher:Sijthoff & Noorahoff
COBISS.SI-ID:27302656 New window

Secondary language

Keywords:lomna mehanika, lomna žilavost, kompoziti, slojeviti materiali, nehomogenost, razpoke, metoda končnih elementov, elastični bimateriali


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