NUMERICAL ESTIMATION OF MICRO-CRACK PATHS IN POLYMER PARTICULATE COMPOSITE

0465156 - ÚFM 2017 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Majer, Z. - Náhlík, Luboš
NUMERICAL ESTIMATION OF MICRO-CRACK PATHS IN POLYMER PARTICULATE COMPOSITE.
Engineering Mechanics 2014. 20th International conference. May 12-15, 2014, Svratka, Czech Republic. Book of full texts. Brno: Brno University of Technology. Institute of Solid Mechanics, Mechatronics and Biomechanics, 2014 - (Fuis, V.), s. 376-379. ISBN 978-80-214-4871-1. ISSN 1805-8248.
[EM - International Conference on Engineering Mechanics /20./. Svratka (CZ), 12.05.2014-15.05.2014]
Institucionální podpora: RVO:68081723
Klíčová slova: Polymer Composite * Fracture Mechanics * Interphase * Finite Element Method
Kód oboru RIV: JL - Únava materiálu a lomová mechanika

Determination of composite mechanical behavior is one of important part during the composite tailoring. The aim of the present work was to estimate a micro-crack behavior in a polymer particulate composite. The composite was investigated by means of the finite element method -using ANSYS software. A two-dimensional three-phase finite element model was developed to analyze the crack growth behavior. The assumptions of the linear elastic fracture mechanics were considered and the Maximum Tangential Stress (MTS) criterion was used to predict the direction of the crack propagation. The effect of the elastic modulus of the interphase on the micro-crack propagation was investigated. The properties of matrix and particles were taken from experiment. It was shown that the interphase properties influence the stress intensity factor KI as well as the micro-crack paths. The results of this paper can contribute to a better understanding of the micro-crack propagation in particulate composites with respect to the interphase.
Trvalý link: http://hdl.handle.net/11104/0264032