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In restoration or repair of old buildings the correct estimation of the stress-strain-relationship of the existing structure is an important task. Masonry stiffness is cr [...]
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Michoinová, D.
The aim of the paper is to present and discuss selected results of research concerned with historically inspired techniques of nonhydraulic mortar preparation. The resear [...]
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The paper describes the influence of water/gypsum ratio to the dynamic modulus of elasticity of dental gypsum. Commercially available dental gypsum Interdent® (with comp [...]
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Seven ductile fracture criteria are applied to simulation of cold forward extrusion and their performance in prediction of chevron cracks is presented. The criteria are i [...]
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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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It is well established that most construction materials behave differently under static and dynamic loading. The stress-rate sensitivity of concrete, steel and rock has b [...]
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Stone from Piraeus was used during the 7th and 6th centuries BC as the main building material for all parts of the monuments of the Acropolis of Athens. The stone is a li [...]
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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 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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This paper deals with numerical simulation of the fracture process in cementitious composite specimens. A technique based on physical discretization of continuum is emplo [...]
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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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Analyses show great progress in developing non-conventional actuators. Artificial muscles have properties suitable for use in the rehabilitation area. The combination of [...]
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13.
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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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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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This paper presents the consideration on the change judgement of J integral and Q parameter as the base parameters of two-parameter elastic-plastic fracture mechanics. An [...]
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Fracture behaviour of concrete is studied using two-phase material model. Propagation of a single macrocrack in hardened cement paste (matrix) and aggregate (particle) is [...]
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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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The paper is focused on damage identification of dynamically loaded structures using methods of soft computing including artificial intelligence. The damage and variabili [...]
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The paper is focused on statistical inverse analysis of material model parameters, where statistical parameters of input parameters have to be identified based on experim [...]
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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 paper presents analysis of laboratory experiments on soils that are usually classified as coarse grained soils and are often used as backfill for trenches from pipes [...]
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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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This study investigates the engineering properties of composite geopolymer mortar manufactured by replacing the slag with metakaolin of 0, 30 and 70% by weight, together [...]
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Stone repair mortars used on the cathedral of Berne (Switzerland) have been refined from existing recipes. These hydraulic mortars without any organic additions are prepa [...]
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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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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 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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