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Motion planning is essential for mobile robot successful navigation. There are many algorithms for motion planning under various constraints. However, in some cases the h [...]
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Lime renders can help improve the energy balance of the building itself given their position in the external layer. Indeed, historical masonries have high rates of therma [...]
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To the interpretation of crack growth, it is substantial to estimate the plastic region geometry in front of a crack. Performed here is a study for predicting crack growt [...]
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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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The article is a contribution to numerical simulations of pitting arise phenomena on the gear teeth. The basic assumption of the presented simulations was that pitting (p [...]
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Abstrakt: The presented paper deals with procedure created for quality and reliability evaluation of ductile fracture criteria group. The base for criteria verification i [...]
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The model of the human vocal fold is created with transfer matrix method. The model is made from 32 cylindric or conic elements for Czech vowel /u/. The calculation is ca [...]
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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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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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In case of two-parameter linear fracture mechanics a study of inhomogeneity influence on behaviour of short cracks is performed. The values of stress intensity factor (KI [...]
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The influence of corner singularity on crack behaviour for a threedimensional structure is described in this paper. The distribution of stress singularity through the thi [...]
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The paper deals with material models calibration from experiment tests on cylindrical bar. There are calibrated four ductile damage criteria, which seem to be generally w [...]
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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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The paper proposes, on built heritage reuse, a research collaboration within the University of Naples Federico II and Faculty of Architecture and Design, COMSATS, of Isla [...]
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Mík, V.
An analytical-numerical model of the velocity and temperature field was created, whose parameters are expressed as functions of the thickness of the hydrodynamic and ther [...]
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Under the assumptions of linear elastic fracture mechanics the behaviour of cracks and general singular stress concentrators is studied and compared. The stress distribu [...]
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The contribution discusses possible approach for the formulation of fracture criteria for the general stress concentrators – especially a surface crack terminating at t [...]
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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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Jeebori, A.
Tube banks are widely used in crossflow heat exchangers. Usually, the methods for its design are the NTU or LMTD methods, while in this research the Entropy Generation Me [...]
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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 occurrence of deformation twins in the ductile-to-brittle transition (DBT) temperature region were observed under different testing conditions. Mechanical twinning c [...]
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Concrete is represented as a two-phase material in this paper. Behaviour of a crack with its tip on the interface between two different materials - hardened cement paste [...]
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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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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 concept of $J_R$ curves is well established in structure assessment. However, the shape of $J_R$ curves is influenced by constraint e ects significantly. Such phenome [...]
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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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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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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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Paper is focused on comprehensive solution of probabilistic integrity assessment of pressure vessels. Engineering criteria was fully respected during solution, however fr [...]
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A two-parameter fracture mechanics method is applied to small cracks near a stress concentrator. The small crack in the present contribution is considered as crack influe [...]
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A 3D elastic-plastic FEM model with small strains was used for simulation of the deformation mechanics at the curved front of the planar fatigue crack growing in the thic [...]
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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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