Proceedings Vol. 9 (2003)
ENGINEERING MECHANICS 2003
May 11 – 15, 2003, Svratka, Czech Republic
Copyright © 2003 Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 166 - +10p., full text
The concept of $J_R$ curves is well established in structure assessment. However, the shape of $J_R$ curves is influenced by constraint e ects significantly. Such phenomena can be modelled using micro-mechanical models of plasticity. The paper presents simulation of $J_R$ curves using the complete Gurson model of plasticity, which was implemented into the finite element system WARP3D. The calculations were focused on stable crack growth in pipes. The correlation between triaxiality parameter and crack extension was also studied.
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