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Influence of elevated temperatures up to 100 °C on the mechanical properties of concrete

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Book Series: Karlsruher Reihe Massivbau, Baustofftechnologie, Materialprüfung / Institut für Massivbau und Baustofftechnologie ; Materialprüfungs- und Forschungsanstalt Karlsruhe ISSN: 1869912X ISBN: 9783731507956 Year: Volume: 84 Pages: X, 240 p. DOI: 10.5445/KSP/1000082992 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: General and Civil Engineering
Added to DOAB on : 2019-07-28 18:37:01
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Abstract

Experiments to characterize the effects of moisture content and temperature on the mechanical properties of concrete were conducted. Based on these experiments, a new overall material model capable of predicting the mechanical behaviour of concrete subject to elevated temperatures up to 100 °C was developed. The material model estimates the time, temperature and moisture dependency of the compressive and tensile strength, creep and shrinkage of concrete.

Computational Methods for Fracture

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ISBN: 9783039216864 9783039216871 Year: Pages: 404 DOI: 10.3390/books978-3-03921-687-1 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Computer Science
Added to DOAB on : 2019-12-09 11:49:16
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Abstract

This book offers a collection of 17 scientific papers about the computational modeling of fracture. Some of the manuscripts propose new computational methods and/or how to improve existing cutting edge methods for fracture. These contributions can be classified into two categories: 1. Methods which treat the crack as strong discontinuity such as peridynamics, scaled boundary elements or specific versions of the smoothed finite element methods applied to fracture and 2. Continuous approaches to fracture based on, for instance, phase field models or continuum damage mechanics. On the other hand, the book also offers a wide range of applications where state-of-the-art techniques are employed to solve challenging engineering problems such as fractures in rock, glass, concrete. Also, larger systems such as fracture in subway stations due to fire, arch dams, or concrete decks are studied.

Keywords

plate --- FSDT --- HSDT --- Mindlin --- incompatible approximation --- fracture --- screened-Poisson model --- gradient-enhanced model --- damage-plasticity model --- implicit gradient-enhancement --- rock --- shear failure --- elastoplastic behavior --- extended scaled boundary finite element method (X-SBFEM) --- stress intensity factors --- fracture process zone (FPZ) --- thermomechanical analysis --- moderate fire --- finite element simulations --- metallic glass matrix composite --- finite element analysis --- shear band --- microstructure --- ductility --- peridynamics --- fatigue --- rolling contact --- damage --- rail squats --- cracks --- steel reinforced concrete frame --- reinforced concrete core tube --- progressive collapse analysis --- loss of key components --- self-healing --- damage-healing mechanics --- super healing --- anisotropic --- brittle material --- Brittle Fracture --- cell-based smoothed-finite element method (CS-FEM) --- Phase-field model --- ABAQUS UEL --- the Xulong arch dam --- yielding region --- cracking risk --- overall stability --- dam stress zones --- concrete creep --- prestressing stress --- compressive stress --- FE analysis --- force transfer --- grouting --- fracture network modeling --- numerical simulation --- fluid–structure interaction --- bulk damage --- brittle fracture --- rock fracture --- random fracture --- Mohr-Coulomb --- Discontinuous Galerkin --- EPB shield machine --- conditioned sandy pebble --- particle element model --- parameters calibration --- geometric phase --- photonic orbital angular momentum --- topological insulator --- topological photonic crystal --- fatigue crack growth --- surface crack --- crack shape change --- three-parameter model --- LEFM --- XFEM/GFEM --- SBFEM --- phase field --- n/a

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