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Abstrakt: Relations between crack opening displacement (CTOD) and other fracture mechanics parameters are of a great importance in fracture mechanics. The basic aim of t [...]
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The contribution presents experimental investigation of the frequency modal, damping and stress wave propagation characteristics and finite element (FE) mode ling of the [...]
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The paper deals with comparison of experimental and numerical solution of pipeline tests. Proportions of specimens used in assumed experiments have been comparable with p [...]
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There are mechatronic applications, where a slender beam or plate is subjected to static magnetic force generated by an electromagnetic actuator consisting of a solenoid [...]
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Brož, P.
Stochastic theory for fracture of concrete materials is applied. The fracture process can be described not only under monotonically increasing load but also under time-de [...]
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A qualitative analysis of influence of cross-flow shear on its interaction with a jet emanating perpendicularly from the wall is presented. The linear shear flow was gene [...]
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Analysis of laminated plates under static and transient dynamic loading is presented by the meshless local Petrov-Galerkin (MLPG) method. ReissnerMindlin theory is used t [...]
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Axisymmetric circular plates subjected to stationary and transient dynamic loads are analyzed in the presented paper. Effect of viscous damping is also considered. Dynami [...]
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The quality of repointing work in historic masonry is to an important degree determined by the composition of the repair mortar. Apart from this good workmanship is a bas [...]
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The paper offers a novel approach to the modeling of asphalt mixtures. It introduces a concept of so called statistically equivalent periodic unit cell (SECUP) known from [...]
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Bayer, Z.
A set of approximations for the specific volume of saturated liquid and saturated vapor, saturation pressure and for the isothermal derivatives (∂π/∂ϕ´)τ , (∂π [...]
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Locally Weighted Learning (LWR) is a class of approximations, based on a local model. In this paper we demonstrate using LWR together with Q-learning for control tasks. Q [...]
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Presented paper deals with fracture behaviour of carbon fibre reinforced composites on the basis of Portland (PC) and alumina (HC) cement. Carbon fibres can be used for [...]
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The paper the synthesis of the receptance by using the block diagrams. This method has some advantages. Each sub-system is described by its receptance and occurs in the [...]
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Database construction using a three-dimensional scanner is a method that can show a real-world object in a virtual space. It is popularly applied in various fields such a [...]
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Long bone fractures can be healed using external fixators - devices that stiffly fix fracture fragments using parallel to the bone, attached with pins frame. This method [...]
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Sandwich construction elements, i.e. elements formed by two skins and core, excel in high ratio of bending stiffness to weight of construction. This complex is designed i [...]
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The aim of the study was to present influence of the three-dimensional spacing of the bone implants to the stability of bone fracture fixing in biplane external stabilize [...]
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In this paper is solved a 3D analysis of growing crack of the chevron notched three-point-bending specimen. On macroscale the specimen body is modeled as an elastic homog [...]
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The article deals with measurement of flow parameters in defined 90° bend profiles of square constant cross section and it´s linking upstream and downstream straight ax [...]
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Dupal, J.
The paper deals with a new approach to critical speed determination of rotors by means of the simple method against the so far used iterative method and a method utilizin [...]
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The contribution deals with the 3D analysis of the chevron notched three point bending specimen which is used to determine the fracture toughness of brittle matrix compos [...]
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The results of fracture experiments and numerical model with sandstone specimens are presented in this paper. The aim is the comparison of selected mechanical/fracture pa [...]
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Sobotka, J.
This article presents Ph.D. thesis dealing with applications of generalized functions (distributions) to analytical calculations of thin-walled beams with discontinuities [...]
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Selected approximation curves of mechanical-fracture parameter values − modulus of elasticity, effective fracture toughness, specific fracture energy, compressive cube [...]
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Cichański, A.
The paper presents results of research on precision of stress concentration factor for flat bars with opposite U-shaped notches under tension. The calculations were perfo [...]
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This paper is focused on fracture energy which belongs to the basic fracture-mechanical characteristics of quasi-brittle materials. This parameter is explored here from t [...]
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Physical and chemical changes in quasibrittle materials loaded with high temperature affect the fracture mechanical behavior of structures. Threepoint bending tests of no [...]
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The basic fracture properties of cement-based composite are ascertained on the basis of test evaluations of the specimens in suitable test configurations. Three-point ben [...]
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Fuxa, J.
Fracture strain diagram. Strength criterion as a contribution of physics and mechanics. Review. Definition of the "reference normal" and "reference shear" str [...]
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Presented paper is concerned with the numerical modeling of quasibrittle materials such as concrete. Brancherie and Ibrahimbegovic are authors of a simple model capable o [...]
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Three point bending test of central notched specimen is used for determination of fracture properties of concrete, mortar and hardened cement paste. The properties – e. [...]
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The paper is focused on definition and application of the simple bending fracture model suitable for precision approximation of measured load–deflection diagrams from [...]
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