ON THE ENERGY RELEASE RATE OF THE CRACK EMANATING FROM THE INCLUSION INTERPHASE

0511056 - ÚFM 2020 RIV CZ eng C - Conference Paper (international conference)
Profant, T. - Hrstka, M. - Klusák, Jan - Kersner, Z.
ON THE ENERGY RELEASE RATE OF THE CRACK EMANATING FROM THE INCLUSION INTERPHASE.
Engineering Mechanics 2017. Brno: University of technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, 2017 - (Fuis, V.), s. 806-809. ISBN 978-80-214-5497-2. ISSN 1805-8248.
[2017 - International Conference on Engineering Mechanics /23./. Svratka (CZ), 15.05.2017-18.05.2017]
R&D Projects: GA ČR(CZ) GA16-18702S
Institutional support: RVO:68081723
Keywords : Microcrack * Inclusion * Interphase * Singular integral equation * Dislocation distribution technique * Complex potentials
OECD category: Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics

The problem of the crack emanating from the interphase region of the circular inclusion is investigated. The problem combines an application of dislocation distribution technique for a crack modelling and the method of boundary integral equations to approximate the loading along the boundary of the domain containing an inclusion. The topological derivative method provides the combination of both approaches and results to the evaluation of the energy release rate of the arbitrary oriented microcrack emanating from the inclusion and matrix interphase. The fundamental solution intended to the boundary integral method such as the continuously distributed dislocation technique is based on the application of Muschelishvili complex potentials in the form of the Laurent series. The coefficients of the series are evaluated from the compatibility conditions along the interfaces of inclusion, interface and matrix.
Permanent Link: http://hdl.handle.net/11104/0301419