Browsing Ústav stavební mechaniky by Author "Frantík, Petr"
Now showing items 1-8 of 8
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Analysis of accuracy of Williams series approximation of stress field in cracked body – influence of area of interest around crack-tip on multi-parameter regression performance
Sobek, Jakub; Frantík, Petr; Veselý, Václav (Gruppo Italiano Frattura, 2017-01-01)A study on the accuracy of an approximation of the stress field in a cracked body is presented. Crack-tip stress tensor is expressed using the linear elastic fracture mechanics (LEFM) theory in this work, more precisely ... -
Components of the Fracture Response of Alkali-Activated Slag Composites with Steel Microfibers
Šimonová, Hana; Frantík, Petr; Keršner, Zbyněk; Schmid, Pavel; Rovnaník, Pavel (MDPI, 2019-05-16)Knowledge of the mechanical and primarily fracture parameters of composites with a brittle matrix is essential for the quantification of their resistance to crack initiation and growth, and also for the specification of ... -
Dynamics of Collapse of a High Building
Němec, Ivan; Juráňová, Martina; Ševčík, Ivan; Frantík, Petr; Vlk, Zbyněk (David Publishing, 2012-06-25)This paper is a contribution to the discussion about the fall of the New York World Trade Center (WTC) towers in 2001. The differential equation of the collapse of a high building is derived by taking into account many ... -
A Harmonized Perspective on Transportation Management in Smart Cities: The Novel IoT-Driven Environment for Road Traffic Modeling
Mašek, Pavel; Mašek, Jan; Frantík, Petr; Fujdiak, Radek; Ometov, Aleksandr; Hošek, Jiří; Andreev, Sergey; Mlýnek, Petr; Mišurec, Jiří (MDPI, 2016-11-08)The unprecedented growth of today’s cities together with increased population mobility are fueling the avalanche in the numbers of vehicles on the roads. This development led to the new challenges for the traffic management, ... -
Multi-parameter approximation of stress field in a cracked specimen using purpose-built Java applications
Veselý, Václav; Sobek, Jakub; Tesař, David; Frantík, Petr; Pail, Tomáš; Seitl, Stanislav (Gruppo Italiano Frattura, 2015-05-15)A quality of multi-parameter approximation of the stress and displacement fields around a crack tip in a non-brittle material test specimen is studied in the paper. The stress field approximation using Williams power series ... -
Multi-parameter crack tip stress state description for estimation of fracture process zone extent in silicate composite WST specimens
Veselý, Václav; Sobek, Jakub; Malíková, Lucie; Frantík, Petr; Seitl, Stanislav (Gruppo Italiano Frattura, 2013-04-15)For wedge splitting test specimens, the stress and displacement fields both in the vicinity and also in large distance from the crack tip are investigated by means of numerical methods. Several variants of boundary conditions ... -
Tentative Characterization of Old Structural Concrete through Mechanical Fracture Parameters
Šimonová, Hana; Daněk, Petr; Frantík, Petr; Keršner, Zbyněk; Veselý, Václav (Elsevier, 2017-06-02)Structural concrete of the building of Vítkovice railway station from 1970s is characterized via mechanical fracture parameters. In this paper, six core-drilled cylindrical specimens with diameter of 75 mm were provided ... -
Williams expansion-based approximation of the stress field in an Al 2024 body with a crack from optical measurements
Seitl, Stanislav; Malíková, Lucie; Sobek, Jakub; Frantík, Petr; Lopéz-Crespo, Pablo (Gruppo Italiano Frattura, 2017-07-01)A study on the approximation of the stress field in the vicinity of crack tip in a compact tension specimen made from Al 2024-T351 is presented. Crack tip stress tensor components are expressed using the linear elastic ...