Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
Skip to main content
The earthquake of the 9th of July 1998 that hit in the central group of the Azores archipelago greatly affected the islands of Faial, Pico and São Jorge, reaching a magnitude of Mw 6.2 with the epicentre located about 15km northeast of... more
    • by 
    •   9  
      Civil EngineeringGeologyDamage MechanicsEmergency Response
In order to design structural components using composite materials a deep understanding of the material behaviour and its failure mechanisms is necessary. To create a better understanding of the initiation, growth and interaction of the... more
    • by 
    •   20  
      EngineeringMaterials EngineeringMechanical EngineeringAerospace Engineering
Buckling structures that cannot be simply understood in the frame of continuum elastic theory have been observed by atomic force microscopy on gold films, 630 nm thick, deposited by sputtering method on silicon substrates. X-ray... more
    • by 
    •   11  
      EngineeringTechnologyAtomic Force MicroscopyDamage Mechanics
A yield loss simulation model for rice was developed to simulate injury mechanisms due to pathogens, insects, and weeds, and the yield losses they cause in a range of production situations. The structure of the model is simple, flexible,... more
    • by  and +1
    •   13  
      VietnamMultidisciplinaryEcological ModellingDamage Mechanics
An improved gradient-enhanced approach for softening elasto-plasticity is proposed, which in essence is fully nonlocal, i.e. an equivalent integral nonlocal format exists. The method utilises a nonlocal field variable in its constitutive... more
    • by 
    •   12  
      Materials EngineeringMechanical EngineeringCivil EngineeringPlasticity
    • by 
    •   12  
      EngineeringPlasticityCompositesFEM
The effects of nanoclay inclusion on cyclic fatigue behavior and residual properties of carbon fiber-reinforced composites (CFRPs) after fatigue have been studied. The tension-tension cyclic fatigue tests are conducted at various load... more
    • by 
    •   14  
      EngineeringScanning Electron MicroscopyDamage MechanicsNanocomposite
Geometrical models needed for finite element discretization of plain-weave fabric-reinforced composites are developed from measurements taken on photomicrographs of single lamina and laminated composites. Then, a meso-level damage model... more
    • by 
    •   8  
      EngineeringFinite element methodFinite ElementDamage Mechanics
The use of self-organizing maps and artificial neural networks for structural health monitoring is presented in this paper. The authors recently developed a nonparametric structural damage detection algorithm for extracting damage indices... more
    • by 
    •   20  
      EngineeringMechanical EngineeringCivil EngineeringAerospace Engineering
This article addresses several issues in damage micromechanics for microcracked brittle or quasi-brittle solids, with major attention paid on summarizing some recent works of the present authors. First, we discuss the methods for... more
    • by 
    •   6  
      Materials EngineeringMechanical EngineeringCivil EngineeringFinite element method
This study deals with the creep damaging processes of two polyethylene (PE) resins. One is a ductile material while the other is a brittle one. Scanning electron microscopic (SEM) observations as well as chemical analysis are used to... more
    • by 
    •   9  
      EngineeringFatigue crack growthDamage MechanicsPolymer
A 1.91-mm thick circular polycarbonate plate of 115 mm diameter was impacted by a spherical steel projectile of 6.98 mm diameter at its center. Subsequent impacts were made at 10, 20, 30, 40, and 50 mm radii of the plate. Dent dimensions... more
    • by 
    •   8  
      Mechanical EngineeringCivil EngineeringAerospace EngineeringDamage Mechanics
In the next generation nanoelectronics and SiC based electronic packaging, current density and temperature gradient will be larger in orders of magnitude. Electromigration and thermomigration are considered to be major road blocks leading... more
    • by 
    •   13  
      Materials EngineeringPower ElectronicsNanoelectronicsDamage Mechanics
Articles Articles, All fields, Author, Advanced search. ... Consequently, the degree of crystallinity obtained with this technique, χ c =8.3 wt%, is not too far from the value ... 29.86°) are much more intense than for PLA, and the degree... more
    • by  and +1
    •   11  
      EngineeringDamage MechanicsPolymerPoly (lactic acid)
Aim of the paper is the study of the cyclic behavior of reinforced concrete beams taking into account the compression and tensile softening in the concrete material, the Baushinger effect in the steel and an adequate bond-slip law for the... more
    • by 
    •   3  
      EngineeringDamage MechanicsReinforced concrete
Для более точной оценки прочности эксплуатируемых железобетонных конструкций необходимо использовать модели с дискретным расположением арматурных стержней с учетом реальных характеристик сцепления арматуры с бетоном, определяемых, как... more
    • by 
    •   4  
      Damage MechanicsReinforced concreteFinite Element SimulationsTensioned pullout test
This paper provides a historical review of the literature on the effects of radiation-induced displacement damage in semiconductor materials and devices. Emphasis is placed on effects in technologically important bulk silicon and silicon... more
    • by 
    •   6  
      Biomedical EngineeringDamage MechanicsInformation SourcesRadiation Effect
excellent ideas, advice and support were invaluable for the completion of this work and I render thanks to them. I would like to express my gratitude to Carlos Dávila for his continuous interest in the work and his valuable comments and... more
    • by 
    •   17  
      Materials EngineeringMechanical EngineeringAerospace EngineeringModeling
This book is written for people who wish to learn MATLAB for the first time. The book is really designed for beginners and students. In addition, the book is suitable for students and researchers in various disciplines ranging from... more
    • by 
    •   2  
      Damage MechanicsMATLAB code
Structural health monitoring (SHM) and vibration-based structural damage detection have been a continuous interest for civil, mechanical and aerospace engineers over the decades. Early and meticulous damage detection has always been one... more
    • by 
    •   20  
      Electrical EngineeringMechanical EngineeringCivil EngineeringAerospace Engineering
A plastic-damage constitutive model for plain concrete is developed in this work. Anisotropic damage with a plasticity yield criterion and a damage criterion are introduced to be able to adequately describe the plastic and damage behavior... more
    • by  and +1
    •   13  
      Materials EngineeringMechanical EngineeringCivil EngineeringThermodynamics
It is very significant to investigate the shot peening mechanism in ensuring a good resistance to fatigue and stress corrosion. This paper reviews the recent advancements in shot peening process. Emphasis is put on the application of... more
    • by 
    •   16  
      Materials EngineeringMechanical EngineeringMaterials ScienceFinite element method
The common failures mechanisms of boiler components at elevated temperatures and monitoring techniques used in power plants to detect damaging or failures are generally well described in literature. Despite of different classification... more
    • by  and +1
    •   90  
      Materials EngineeringMetallurgical EngineeringMechanical EngineeringMaterials Science
To achieve safety and reliability in pipelines installed in seismic and permafrost regions, it is necessary to use linepipe materials with high strength and ductility. The introduction of dual-phase steels, e.g., with a bainite and... more
    • by 
    •   18  
      MicrostructureComputational MechanicsComputational Materials ScienceModeling and Simulation
This review addresses possible adaptation strategies in rice production to abiotic stresses that will aggravate under climate change: heat (high temperature and humidity), drought, salinity, and submergence. Each stress is discussed... more
    • by 
    •   17  
      GeneticsAgronomyClimate ChangePlant Biology
excellent ideas, advice and support were invaluable for the completion of this work and I render thanks to them. I would like to express my gratitude to Carlos Dávila for his continuous interest in the work and his valuable comments and... more
    • by 
    •   17  
      Materials EngineeringMechanical EngineeringAerospace EngineeringModeling
Reformer furnaces are used in petrochemical industry to produce hydrogen. Their most critical components are radiant tubes, where extreme temperature and pressure conditions required the deployment of high alloyed austenitic HP grade... more
    • by 
    •   14  
      Materials EngineeringMechanical EngineeringCivil EngineeringScanning Electron Microscopy
In this paper the representation of geological conditions in a numerical simulation model is considered. By the expression ''geological conditions'' we mean the 3D volume geometry of the geological formations, the spatial variability... more
    • by 
    •   12  
      Civil EngineeringFinite element methodNumerical ModellingDamage Mechanics
This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with... more
    • by 
    •   10  
      Structural EngineeringComposite Materials and StructuresComposite MaterialsStructural Health Monitoring
The present work deals with the concept of post-initiation softening applied to ductile crack initiation and propagation problems in thick structural components such as pre-cracked pipes and fracture specimens. The methodology includes a... more
    • by  and +1
    •   3  
      Mechanics of Fracture, Fatigue and DamageDamage MechanicsFracture Propagation
This study focuses on the description of damage and failure behaviour of triaxial braided carbon/epoxy composites under tension. The tensile tests were instrumented with optical surface strain and acoustic emission measurements. Damage... more
    • by 
    •   9  
      EngineeringAcoustic EmissionDamage MechanicsFailure Analysis
This paper presents a 3-D failure model for predicting the dynamic material response of composite laminates under impact loading. The formulation is based on the Continuum Damage Mechanics (CDM) approach and enables the control of the... more
    • by 
    •   6  
      Civil EngineeringMaterials ScienceCompositesFinite Elements
Damage mechanisms such as surface cracks, plastic deformation and wear can significantly reduce the service life of railway track and rolling stock. They also have a negative impact on the rolling noise as well as on the riding comfort. A... more
    • by  and +1
    •   10  
      Boundary Element MethodsNumerical MethodDamage MechanicsComputer Model
    • by  and +1
    •   14  
      ArchitectureNumerical AnalysisArchitectural HeritageFinite Element
We present a compendium of optocoupler radiation test data including data on neutron, proton and heavy ion displacement damage (DD), single event transients (SET) and degradation due to total ionizing dose (TID). Proton data includes... more
    • by 
    •   3  
      Damage MechanicsRadiation EffectsHeavy Ions Physics
At the present time, life acceleration factors for solder joints made of SnAgCu (SAC) ternary alloys between accelerated tests and field use conditions are not well understood. Further, the cycle time for accelerated testing of Pb-free... more
    • by 
    •   11  
      Fracture MechanicsFatigue crack growthDamage MechanicsFailure Analysis
U n c o r r e c t e d P r o o f Karl Ritz • Lorna Dawson • David Miller Editors Criminal and Environmental Soil Forensics Ritz_FM.indd iii 9/30/2008 2:48:29 AM U n c o r r e c t e d P r o o f
    • by  and +1
    •   7  
      Damage MechanicsCase StudySpatial DistributionAnalytical Method
The origins of the enhanced ac hot-carrier stress damage are examined in this paper. The enhancement in hotcarrier stress damage under ac stress conditions observed with respect to damage under dc stress conditions can fully be explained... more
    • by 
    •   9  
      StressDamage MechanicsFrequencyDegradation
    • by  and +1
    •   8  
      ArchitectureEarthquake EngineeringArchitectural HeritageDamage Mechanics
In this work a novel methodology for fracture toughness characterization by means of the small punch test (SPT) is presented. Notched specimens are employed and fracture resistance is assessed through a critical value of the notch mouth... more
    • by 
    •   5  
      Finite ElementsDamage MechanicsCTODFracture Toughness
International Fracture Mechanics Summer Schools have been held from 1980 and have attracted a large number of well-known specialists and participants. Monographs published after every school have been the most effective references in... more
    • by 
    •   20  
      Engineering MechanicsComputational MechanicsCorrosion ScienceContinuum Mechanics
Numerical finite element method using solid elements discretisation is increasingly used to simulate the impact behaviour of composite materials. In order to describe the intralaminar damage of composite materials, a three dimensional... more
    • by  and +1
    •   4  
      Composite Materials and StructuresNumerical ModellingFracture MechanicsDamage Mechanics
Rail corrugation wear is one of the most important types of track wear in the railroad industry. The most common cases of rail corrugation that have been documented in the literature were classified by Grassie [1] in six categories,... more
    • by 
    •   8  
      Materials EngineeringMechanical EngineeringWearNumerical Method
Neurodegenerative diseases constitute a worldwide health problem. Metals like iron and copper are essential for life, but they are also involved in several neurodegenerative mechanisms such as protein aggregation, free radical generation... more
    • by 
    •   26  
      Damage MechanicsNeurodegenerative DiseasesAmyotrophic Lateral SclerosisFree Radical
The wear resistance at high temperature of different high speed steels (HSS) for rolls is evaluated on the basis of a tribological test aimed at reproducing the damage mechanisms occur during hot rolling. The test is positively used to... more
    • by 
    •   12  
      Materials EngineeringMechanical EngineeringWearDamage Mechanics
Compression-after impact (CAI) strength Room and high temperatures CAI damage mechanisms CAI test and Impact energy a b s t r a c t
    • by 
    •   10  
      EngineeringDamage MechanicsComposite MaterialHigh Temperature
A brief review of the damage mechanics literature is given. As this area of scientific research is very modern, the authors have restricted themselves to about 100 most important books and papers. Basic equations to introduce the... more
    • by  and +1
    •   4  
      ThermodynamicsDamage MechanicsContinuum Damage MechanicsScientific Research
In the present study we consider an adaptation of Nguyen’s model [G.D. Nguyen, A thermodynamic approach to constitutive modelling of concrete using damage mechanics and plasticity theory, D.Phil. Thesis, Dept. of Engng. Sci., University... more
    • by  and +2
    •   3  
      Mechanics of Fracture and damageMechanics of Fracture, Fatigue and DamageDamage Mechanics
In this paper, a continuum viscoplastic model including damage effects is used to describe the creep deformation and damage mechanisms of P92 steel in the temperature range 550-750 C. In a first step, the results of creep tests performed... more
    • by 
    •   4  
      Mechanical EngineeringFinite ElementDamage MechanicsLong Term Evolution
Form change due to wear and plastic deformation on a rail can reduce the service life of a track. The purpose of this investigation was to study the development of these damage mechanisms on new and 3-year-old rails in a commuter track... more
    • by 
    •   9  
      Materials EngineeringMechanical EngineeringLubricationWear