Experimental evaluation of the energy responsible for the crack advancing

0384985 - ÚTAM 2013 RIV RU eng C - Conference Paper (international conference)
Vavřík, Daniel - Jandejsek, Ivan
Experimental evaluation of the energy responsible for the crack advancing.
European Conference on Fracture. Vol. 19. Kazaň: Kazan Scientific Centre of the Russian Academy of Sciences, 2012, s. 1-5. ISBN 978-5-905576-18-8.
[European conference on fracture /19./. Kazan (RU), 26.08.2012-31.08.2012]
R&D Projects: GA ČR(CZ) GA103/09/2101
Institutional support: RVO:68378297
Keywords : fracture process zone * digital radiography * esential fracture work
Subject RIV: JL - Materials Fatigue, Friction Mechanics

Many high performance ductile structures in civil engineering, automotive, aerospace and electrical industries are manufactured from high ductile thin wall materials. The mechanical behaviour of such materials is different from that of bulk (thick wall) materials. It is well known that measured value of fracture toughness strongly depends on many factors, namely geometry and type of loading. The existence of the plastic region in crack front is generally taken as a reason for dependence of fracture toughness on the body geometry. As appropriate determination of the fracture toughness evaluation of the energy responsible for fracture advancing can be considered. For such evaluation, the knowledge of several physical quantities is necessary: crack shape and processing zone behavior, strain-stress field and plastic deformation. Combination of several experimental methods - computed tomography, Digital Image Correlation and strain gauge measurements were employed for this purpose.
Permanent Link: http://hdl.handle.net/11104/0214412