A functionally graded material model of cracked polymer weld

0331778 - ÚFM 2010 RIV SK eng C - Conference Paper (international conference)
Ševčík, Martin - Hutař, Pavel - Náhlík, Luboš - Knésl, Zdeněk
A functionally graded material model of cracked polymer weld.
Computational Modelling and Advanced Simulations. Bratislava: Vydavatelstvo STU v Bratislave, 2009 - (Murín, J.; Kutiš, V.; Ďuriš, R.), s. 1-10. ISBN 978-80-227-3067-9.
[Computational modelling and advanced simulations 2009. Bratislava (SK), 30.06.2009-03.07.2009]
R&D Projects: GA ČR GC101/09/J027; GA ČR GD106/09/H035
Institutional research plan: CEZ:AV0Z20410507
Keywords : functionally graded material * stress intensity factor * polymer weld * strip model
Subject RIV: JL - Materials Fatigue, Friction Mechanics

Two different welds of polymer materials are simulated in order to study the influence of the change of material properties on the value of the stress intensity factor. The finite element method and model of functionally graded material are used for estimation of the fracture parameters of the weld. Simulations are performed on a single edge cracked tension specimen geometry where Young’s modulus change is prescribed. In order to simulate the continuous change of material behaviour through the structure, the numerical model is composed of a set of strips with constant Young’s modulus. For verification of the proposed numerical model for some special cases, the numerical results were compared with the analytical solution and X-FEM simulation and good agreement was found. The paper presented shows an effective method for simulation of material change using a model of functionally graded material.
Permanent Link: http://hdl.handle.net/11104/0177206