Ústav stavební mechaniky
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Laser cladded protective layer on the S960 Change of microhardness in the vicinity of the bi-material interface
(Elsevier, 2023-01-13)Specimens with a bi-metallic interface are formed by laser cladding. The S960 high-strength steel is chosen as a substrate material to which a layer of either aluminum bronze or hard chrome is applied. The change of ... -
Evaluation of Fatigue Crack Growth Rates in an IPE Beam Made of AISI 304 under Various Stress Ratios
(Elsevier, 2023-01-20)Stainless steel is a material which is widely used in various environments, including structural, load-bearing components of buildings. Almost every engineering structure is exposed to cyclic loading, which results in ... -
Ponding Effect: Nonlinear Loading of Tensile Surface Structures
(Transactions of the VSB - Technical University of Ostrava, Civil Engineering Series, 2023-01-31)This paper deals with a potentially dangerous phenomenon known as the ponding effect that may occur on tensile surface structures. This phenomenon may cause a local disorder that might lead to a fatal damage and collapse ... -
High-cycle fatigue cracks in concrete investigated by CT tomography
(Elsevier, 2023-02-13)This contribution deals with the analysis of fatigue damage in high-performance concrete (HPC) studied by three-point bending test. The concrete sample was tested with frequency of 10 Hz and it was exposed to a total number ... -
Pilot Study on Shrinkage and Fracture of Materials Based on the Alkali-Activated Slag: Influence of Curing Regime
(IOP Publishing, 2023-01-18)The paper presents the results of a pilot study focused on the shrinkage process and fracture parameters of two fine-grained materials prepared from ground granulated blast furnace slag and silica sand. Two different ... -
Influence of Micro-structure of selected components made from AISI 304 on the mechanical properties
(Elsevier, 2023-01-13)Stainless steels, especially AISI 304, are increasingly used civil engineering materials in the last years because they have excellent properties. They are used for many civil engineering structures e.g. chemical, energy, ... -
Fatigue crack propagation under corrosion of high-strength steel
(Elsevier, 2023-01-13)Corrosion is nearly unavoidable phenomenon in most of the metal materials. In this paper, its effect on the sharp edge crack propagation under tensile loading is investigated. A rectangular plate with a perpendicular crack ... -
Determination of concrete fracture parameters using inverse analysis: Influence of the tensile softening model
(Elsevier, 2023-01-13)The paper is focused on the identification of selected mechanical fracture parameters of concrete. An inverse analysis based on an artificial neural network is used for this purpose. In this approach the laboratory ... -
3D scanning as an effective tool for controlling the dimensions of test specimens
(VSB – Technical University of Ostrava, Faculty of Civil Engineering, 2023-01-09)3D laser scanning is a powerfull tool that digitally captures the shape of physical objects using a laser light crosses. In this work, the 3D laser scanning technology is used for the 3D shape capture of specially designed ... -
Comparison of crack propagation rates in selected structural components made from AISI 304 grades: Three-point bending test
(Elsevier, 2023-01-03)This study focuses on crack propagation rates of AISI 304 stainless-steel specimens made from selected structural components experimentally tested in three-point bending. Components of two productions loaded with constant ... -
Numerical study of specimen with steel inclusion: Influence of interfacial transition zone
(Elsevier, 2023-01-03)In this paper, the influence of the interfacial transition zone (ITZ) between steel inclusion and fine-grained cement-based composite on fracture behaviour is investigated. Specimens of the nominal dimensions 40 × 40 × 160 ... -
Explicit and implicit method in nonlinear seismic analysis
(EDP Sciences, 2017-05-21)The paper deals with suitability of use of the explicit and implicit method in heavily nonlinear seismic analysis. Considering typical time of duration of earthquakes from several seconds to approximately twenty seconds, ... -
Effect of petrographic composition and chemistry of aggregate on the local and general fracture response of cementitious composites
(Gruppo Italiano Frattura, 2022-03-25)This paper concerns the results of research into the influence of the composition of rock inclusions on the fracture response of cement-based composite specimens. Specially designed specimens of the nominal dimensions 40 ... -
Assessment of fatigue resistance of concrete: S-N curves to the Paris’ law curves
(Elsevier, 2022-05-18)Fatigue behaviour of concrete materials is often investigated on un-notched specimens under the compressive or bending loads. In this experimental study, a notched three-point bending (TPB) specimen is used in high-cycle ... -
Computation of Equilibrium Paths in Nonlinear Finite Element Models
(EDP Sciences, 2016-07-17)In the present paper, equilibrium paths are simulated applying the nonlinear finite element model. On the equilibrium paths, there are identified critical points which contribute to understanding and quantification of ... -
Reconstruction of a 2D stress field around the tip of a sharp material inclusion
(Elsevier, 2016-07-21)The stress distribution in the vicinity of a sharp material inclusion (SMI) tip exhibits a singular stress behavior. The strength of the stress singularity depends on material properties and geometry. The SMI is a special ... -
Behaviour of a crack in a corner or at a tip of a polygon-like particle
(Elsevier, 2016-07-21)Crack propagation in particle composite materials depends on the properties of a matrix and a particle. A changing combination of the materials of a matrix and a particle together with various shape of the particle can ... -
FEM Modelling of Lateral-Torsional Buckling using Shell and Solid Elements
(Elsevier, 2017-06-02)The paper describes two methods of FEM modelling of I-section beams loaded by bending moments. Series of random realizations with initial imperfections following the first eigenmode of lateral-torsional buckling were ... -
Influence of SPH Regularity and Parameters in Dynamic Fracture Phenomena
(Elsevier, 2016-06-13)The Smoothed Particle Hydrodynamics (SPH) method can be used with advantage in the field of fracture mechanics, which is especially true when quasi-brittle materials are involved. The advantages of the SPH method are more ... -
Parameter Identification for a Multivariable Nonlinear Constitutive Model inside ANSYS Workbench
(Elsevier, 2016-06-13)This contribution aims to describe the process of the inverse identification of the parameters of a nonlinear material model from experimentally obtained data. This process takes place with the aid of approaches utilizing ...
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