Effect of the free surface on crack behaviour in cracked graded structures

0353460 - ÚFM 2011 RIV CZ eng A - Abstrakt
Ševčík, Martin - Hutař, Pavel - Náhlík, Luboš
Effect of the free surface on crack behaviour in cracked graded structures.
Computational Mechanics 2010 - Book of extended abstracts. Pilsen: University of West Bohemia, Pilsen, 2010 - (Adámek, V.; Zajíček, M.). s. 1-2. ISBN 978-80-7043-919-7.
[Computational Mechanics 2010. 08.11.2010-10.11.2010, Hrad Nečtiny]
Grant CEP: GA ČR GD106/09/H035; GA ČR GA101/09/0867; GA ČR GC101/09/J027
Výzkumný záměr: CEZ:AV0Z20410507
Klíčová slova: graded structure * free surface * stress singularity exponent * polymer weld
Kód oboru RIV: JL - Únava materiálu a lomová mechanika

The aim of the paper is to study the free surface effect on crack behaviour of a crack located in a graded structure. For a determination of the effect the geometry of a Single Edge Crack Tension (SECT) specimen with graded region between two homogenous basic materials (see Fig. 1) is used in numerical simulations. A continuous and smooth graded structure is modelled with various magnitude of non-homogeneity. Fracture parameters are calculated along the crack front for different crack length.
Trvalý link: http://hdl.handle.net/11104/0192706