Particulate Composite Damage: Numerical Estimation of Micro-Crack Propagation Direction

0435034 - ÚFM 2015 RIV CH eng C - Konferenční příspěvek (zahraniční konf.)
Majer, Zdeněk - Marcián, P. - Náhlík, Luboš - Hutař, Pavel - Knésl, Zdeněk
Particulate Composite Damage: Numerical Estimation of Micro-Crack Propagation Direction.
Materials Structure and Micromechanics of Fracture VII. Zurich: Trans Tech Publications, 2014 - (Šandera, P.), s. 445-448. Key Engineering Materials, 592-593. ISBN 978-3-03785-934-6. ISSN 1013-9826.
[MSMF 7 - International Conference on Materials Structure & Micromechanics of Fracture /7./. Brno (CZ), 01.07.2013-03.07.2013]
Institucionální podpora: RVO:68081723
Klíčová slova: particle reinforced composites * interphase * fracture mechanism * finite element method * micro-crack propagation
Kód oboru RIV: JL - Únava materiálu a lomová mechanika

In recent years, particle reinforced composites are widely used due their mechanical properties as construction materials, high-performance engineering materials or protective organic coatings. The paper was mainly focused on the estimating of the interactions of the micro-crack and the particles in the particulate polymer composites. A non-linear material behavior of the matrix was obtained from the experiment and it was used to investigation by means of the finite element method - using ANSYS software. A two-dimensional numerical model was developed and a microcrack propagation direction was calculated based on the assumption of the linear elastic fracture mechanics. The results indicated that the presence of the interphase between particle and matrix can improve the fracture toughness of the polymer particle composites through debonding process. The paper can contribute to a better understanding of the behavior and failure of the composites with the polymer matrix reinforced by the rigid particles.
Trvalý link: http://hdl.handle.net/11104/0238978