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Book
Numerical study of three-dimensional separation and flow control at a wing-body junction : progress report for the period ended April 30, 1989
Authors: --- --- ---
Year: 1989 Publisher: Norfolk, Va. : Hampton, Va. : Department of Mechanical Engineering and Mechanics, College of Engineering and Technology, Old Dominion University ; National Aeronautics and Space Administration, Langley Research Center,

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Book
Magnetohydrodynamic and gasdynamic theories for planetary bow waves
Authors: --- ---
Year: 1983 Publisher: [Washington, D.C.] : [National Aeronautics and Space Administration],

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Periodical
Geometric flows.
ISSN: 23533382 Year: 2015 Publisher: Warsaw, Poland : De Gruyter Open

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Book
Analysis and Design of Structures Made of Plastically Anisotropic Materials
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Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Plastic anisotropy is a common property of many metallic materials. This property affects the analysis and design of structures and metal forming processes. The present edited collection of papers concerns analytic and numerical methods of structural and metal forming analysis and design using material models for anisotropic materials. Some qualitative features of rigid plastic solutions in anisotropic plasticity are investigated. Both rate-independent and rate-dependent constitutive equations are considered. The effect of plastic anisotropy on the distribution of residual stresses and strains is shown. Some papers deal with thermo-mechanical problems.


Book
Analysis and Design of Structures Made of Plastically Anisotropic Materials
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Plastic anisotropy is a common property of many metallic materials. This property affects the analysis and design of structures and metal forming processes. The present edited collection of papers concerns analytic and numerical methods of structural and metal forming analysis and design using material models for anisotropic materials. Some qualitative features of rigid plastic solutions in anisotropic plasticity are investigated. Both rate-independent and rate-dependent constitutive equations are considered. The effect of plastic anisotropy on the distribution of residual stresses and strains is shown. Some papers deal with thermo-mechanical problems.


Book
Stability and Seakeeping of Marine Vessels
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Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This book presents the papers accepted into the Special Issue “Stability and Seakeeping of Marine Vessels” and includes nine contributions to this Special Issue published in 2020. The overall aim of the collection is to improve knowledge about the most relevant and recent topics in ship stability and seakeeping. Specifically, the articles cover a wide range of topics and reflect the recent scientific efforts in the 2nd generation intact stability criteria evaluation and modelling of the ship dynamics assessment in intact or damaged conditions. These topics were investigated mainly through direct assessments performed both via numerical methods and tools, and experimental approaches. The book is addressed to individuals from universities, research organizations, industry, government agencies and certifying authorities, as well as designers, operators and owners who contribute to improved knowledge about “stability and seakeeping”.


Book
Analysis and Design of Structures Made of Plastically Anisotropic Materials
Authors: ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

Plastic anisotropy is a common property of many metallic materials. This property affects the analysis and design of structures and metal forming processes. The present edited collection of papers concerns analytic and numerical methods of structural and metal forming analysis and design using material models for anisotropic materials. Some qualitative features of rigid plastic solutions in anisotropic plasticity are investigated. Both rate-independent and rate-dependent constitutive equations are considered. The effect of plastic anisotropy on the distribution of residual stresses and strains is shown. Some papers deal with thermo-mechanical problems.

Keywords

History of engineering & technology --- fractional viscoplasticity --- rate dependence --- plastic anisotropy --- non-normality --- directional viscosity --- explicit/implicit non-locality. --- hydro-mechanical deep drawing (HDD) --- mechanical property --- type of cooling --- microstructure --- rotating disk --- plane stress --- residual stresses and strains --- flow theory of plasticity --- semi-analytic solution --- anisotropic columnar jointed rock --- numerical model --- centroidal Voronoi diagram --- coefficient of variation --- polar orthotropy --- Hill’s yield criterion --- friction regimes --- singularity --- residual stress --- residual strain --- open-ended cylinder --- autofrettage --- orthotropic plasticity --- temperature-dependent material properties --- composite cylinder --- finite element analysis --- fractional viscoplasticity --- rate dependence --- plastic anisotropy --- non-normality --- directional viscosity --- explicit/implicit non-locality. --- hydro-mechanical deep drawing (HDD) --- mechanical property --- type of cooling --- microstructure --- rotating disk --- plane stress --- residual stresses and strains --- flow theory of plasticity --- semi-analytic solution --- anisotropic columnar jointed rock --- numerical model --- centroidal Voronoi diagram --- coefficient of variation --- polar orthotropy --- Hill’s yield criterion --- friction regimes --- singularity --- residual stress --- residual strain --- open-ended cylinder --- autofrettage --- orthotropic plasticity --- temperature-dependent material properties --- composite cylinder --- finite element analysis


Book
Stability and Seakeeping of Marine Vessels
Authors: ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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This book presents the papers accepted into the Special Issue “Stability and Seakeeping of Marine Vessels” and includes nine contributions to this Special Issue published in 2020. The overall aim of the collection is to improve knowledge about the most relevant and recent topics in ship stability and seakeeping. Specifically, the articles cover a wide range of topics and reflect the recent scientific efforts in the 2nd generation intact stability criteria evaluation and modelling of the ship dynamics assessment in intact or damaged conditions. These topics were investigated mainly through direct assessments performed both via numerical methods and tools, and experimental approaches. The book is addressed to individuals from universities, research organizations, industry, government agencies and certifying authorities, as well as designers, operators and owners who contribute to improved knowledge about “stability and seakeeping”.

Keywords

Technology: general issues --- URANS --- VOF --- overset mesh --- side damage --- bottom damage --- flooding process --- motion response --- nonlinear steady flow --- desingularized Rankine panel method --- forward speed --- radiation and diffraction --- adaptive weather routing --- Seakeeping Performance Index --- route optimization --- Dijkstra algorithm --- Cummins equations --- vertical motions assessment --- time domain simulations --- experimental seakeeping --- hard chine displacement hull form --- second generation intact stability criteria --- operational guidance --- operational limitations --- vulnerability levels --- direct stability assessment --- Ro-Ro ferry --- coastal patrol ship (CPS) --- full-scale seakeeping trials --- ship design --- barge platform --- zero-pressurized air cushion --- hydrodynamic performance --- boundary element method --- container ship --- added resistance in waves --- sea states --- potential flow theory --- variation of ship characteristics --- strip theory --- BEM --- RANS --- regular wave --- seakeeping --- URANS --- VOF --- overset mesh --- side damage --- bottom damage --- flooding process --- motion response --- nonlinear steady flow --- desingularized Rankine panel method --- forward speed --- radiation and diffraction --- adaptive weather routing --- Seakeeping Performance Index --- route optimization --- Dijkstra algorithm --- Cummins equations --- vertical motions assessment --- time domain simulations --- experimental seakeeping --- hard chine displacement hull form --- second generation intact stability criteria --- operational guidance --- operational limitations --- vulnerability levels --- direct stability assessment --- Ro-Ro ferry --- coastal patrol ship (CPS) --- full-scale seakeeping trials --- ship design --- barge platform --- zero-pressurized air cushion --- hydrodynamic performance --- boundary element method --- container ship --- added resistance in waves --- sea states --- potential flow theory --- variation of ship characteristics --- strip theory --- BEM --- RANS --- regular wave --- seakeeping


Book
Advances in Mechanical Problems of Functionally Graded Materials and Structures
Authors: --- --- ---
ISBN: 3039216597 3039216589 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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The book deals with novel aspects and perspectives in functionally graded materials (FGMs), which are advanced engineering materials designed for a specific performance or function with spatial gradation in structure and/or composition. The contributions mainly focus on numerical simulations of mechanical properties and the behavior of FGMs and FGM structures. Several advancements in numerical simulations that are particularly useful for investigations on FGMs have been proposed and demonstrated in this Special Issue. Such proposed approaches provide incisive methods to explore and predict the mechanical and structural characteristics of FGMs subjected to thermoelectromechanical loadings under various boundary and environmental conditions. The contributions have resulted in enhanced activity regarding the prediction of FGM properties and global structural responses, which are of great importance when considering the potential applications of FGM structures. Furthermore, the presented scientific scope is, in some way, an answer to the continuous demand for FGM structures, and opens new perspectives for their practical use.

Keywords

power-law distribution --- evanescent wave --- flow theory of plasticity --- free vibration characteristics --- neural networks --- geometrically nonlinear analysis --- finite element method --- stress concentration factor --- inhomogeneous composite materials --- circular plate --- porous materials --- minimum module approximation method --- ANFIS --- electroelastic solution --- functionally graded piezoelectric materials --- Love wave --- polynomial approach --- stepped FG paraboloidal shell --- material design --- damping coefficient --- spring stiffness technique --- Lamb wave --- pure bending --- general edge conditions --- residual stress --- graded finite elements --- large strain --- non-linear buckling analysis --- orthogonal stiffener --- combined mechanical loads --- functionally graded piezoelectric-piezomagnetic material --- functionally graded beams --- attenuation --- failure and damage --- analytical solution --- functionally graded materials --- elastoplastic analysis --- elastic foundation --- hollow disc --- different moduli in tension and compression --- external pressure --- functional graded saturated material --- bimodulus --- fuzzy logic --- truncated conical sandwich shell --- quadratic solid–shell elements --- functionally graded viscoelastic material --- finite element analysis --- residual strain --- neutral layer --- elliptical hole --- thin structures --- functionally graded plate --- inhomogeneity --- clustering --- metal foam core layer --- robotics and contact wear --- dispersion --- high order shear deformation theory --- finite elements


Book
Stability and Seakeeping of Marine Vessels
Authors: ---
Year: 2021 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

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Abstract

This book presents the papers accepted into the Special Issue “Stability and Seakeeping of Marine Vessels” and includes nine contributions to this Special Issue published in 2020. The overall aim of the collection is to improve knowledge about the most relevant and recent topics in ship stability and seakeeping. Specifically, the articles cover a wide range of topics and reflect the recent scientific efforts in the 2nd generation intact stability criteria evaluation and modelling of the ship dynamics assessment in intact or damaged conditions. These topics were investigated mainly through direct assessments performed both via numerical methods and tools, and experimental approaches. The book is addressed to individuals from universities, research organizations, industry, government agencies and certifying authorities, as well as designers, operators and owners who contribute to improved knowledge about “stability and seakeeping”.

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