Описание: Presents the suitable algorithms to convert collected data in order to gain knowledge of the condition of an infrastructure for maintenance scheduling purposes. This book addresses developments in time response series and its derivatives including the wavelet-based impulse response function.
Описание: This book constitutes the refereed proceedings of the workshops which complemented the 23rd Symposium on Formal Methods, FM 2019, held in Porto, Portugal, in October 2019. This volume presents the papers that have been accepted for the following workshops: Third Workshop on Practical Formal Verification for Software Dependability, AFFORD 2019;
Описание: The goal of this book is to familiarize readers with the latest research on, and recent advances in, the field of Informatics in Control, Automation and Robotics.
Описание: Structural Health Monitoring & Damage Detection, Volume 7: Proceedings of the 35th IMAC, A Conference and Exposition on Structural Dynamics, 2017, the seventh volume of ten from the Conference brings together contributions to this important area of research and engineering.
Описание: This book constitutes the thoroughly refereed proceedings of the 8th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management, IC3K 2016, held in Porto, Portugal, in November 2016.The 18 full papers presented were carefully reviewed and selected from 186 submissions. The papers are organized in topical sections on knowledge discovery and information retrieval; knowledge engineering and ontology development; and knowledge management and information sharing.
Описание: This book constitutes the thoroughly refereed post-conference proceedings of the 29th International Symposium on Logic-Based Program Synthesis and Transformation, LOPSTR 2019, held in Porto, Portugal, in October 2019.
Описание: The collection presents early fi ndings and case studies on fundamental and applied aspects of Structural Dynamics, including papers on:* Structural Health Monitoring* Damage Detection* Numerical Modeling* Mechatronics* System Identifi cation* Active Controls
Описание: Reflection-mode Digital Gradient Sensing Technique for Experimental Fracture Mechanics.- Experimental and Computational Investigation of Out-of-Plane low Velocity Impact Behaviour of CFRP Composite Plates.- Prediction of Incipient Nano-scale Rupture for Thermosets in Plane Stress.- Effect of Degree of Cure on Damage Development in FRP.- Stochastic Discrete Damage Simulations of Laminate Composites.- Development of a Specimen for in-situ Diffraction Planar Biaxial Experiments.- V-Notched Rail Test for Shear-dominated Deformation of Ti-6Al-4V.- A statistical/computational/experimental Approach to Study the Microstructual Morphology of Damage.- Prediction of Ductile Fracture Through Small-size Notched Tensile Specimens.- Development of a Generalized Entropic Framework for Damage Assessment.- Modelling of Experimental Observations of Electrical Response of CNT Composites.- Effect of Micro-cracks on the Thermal Conductivity of Particulate Nanocomposite.- Fatigue Tests on Fiber Coated Titanium Implant- Bone Cement Interfaces.- Fatigue Behavior of Carburized Steel at Long Lives.- Fatigue Behavior of Fluid End Crossbore Using a Coupon-based Approach.- Fatigue in FCC Polycrystalline Metals - Numerical and Experimental Study.- Notch Strain Analysis of Crossbore Geometry.- Keynote: Opto-acoustic and Neutron Emissions from Fracture and Earthquakes.- Field Theoretical Description of Shear Bands.- Measuring the Effective Fracture Toughness of Heterogeneous Materials.- Fatigue Testing and Local Strain Analysis of Nitinol Devices.- Environmental Protection by the Opto-acoustic and Neutron Emission Seismic Precursors.- Neutron Emissions From Hydrodynamic Cavitation.- From Dark Matter to Brittle Fracture.- Compositional Variations in Palladium Electrodes Exposed to Electrolysis.- Strain-rate-dependent Yield Criteria for Composite Laminates.- Experimental Fatigue Specimen and Finite Element Analysis for Characterization of Dental Composites.- Fracture Toughness and Impact Damage Resistance of Nanoreinforced Carbon/Epoxy Composites.- Compression Testing of Micro-scale Unidirectional Polymer Matrix Composites.- Crack Analysis of Wood Under Climate Variations.- Numerical Fracture Analysis Under Temperature Variations by Energetic Method.- Use of a Multiplexed Photonic Doppler Velocimetry (MPDV) System to Study Plastic Deformation of Metallic Steel Plates in High Velocity Impact.- In-Service Preload Monitoring of Bolted Joints Subjected to Fatigue Loading using a Novel 'MoniTorque' Bolt.- Fatigue Behavior of Novel Hybrid Fastening System With Adhesive Inserts.
Описание: 1 Fatigue Damage Precursor Identification Using Nondestructive Evaluation Coupled with Electron Microscopy.- 2 Experimental Fracture Analysis of Tropical Species Using the Grid Method.- 3 Investigating the Effective Fracture Toughness of Heterogeneous Materials.- 4 Improved Hybrid Specimen for Vibration Bending Fatigue.- 5 Experimental Study of Residual Plastic Strain and Damages Development in Carbon Fiber Composite.- 6 Experimental Investigation of Strength of Curved Beam by Thin Ply Non Crimp Fabric Laminates.- 7 Role of Laminate Thickness on Sequential Dynamic Delamination of Curved [90/0] CFRP Composite Laminates.- 8 Application of eMMC Model to Fracture of Metal Sheets.- 9 Hydrolytic Degradation and its Effect on Mechanical Properties of HFPE II 52 Polyimide Preliminary Results.- 10 Mixed Mode and Mode II Fatigue Crack Growth in Woven Composites.- 11 Characterization of Fatigue Induced Damage Evolution in CFRPs Using DIC.- 12 Damage Characterization for Electronic Components Under Impact Loading.- 13 Dynamic Mode II Delamination in Through Thickness Reinforced Composites.- 14 Measurement of Bond Line Fracture Toughness in Adhesively Bonded Composite Structures by Nanoindentation.- 15 Experimental and Numerical Investigation of Novel Crack Stopper Concepts for Lightweight Foam Cored Sandwich Structures.- 16 Probabilistic Improvement of Crack Propagation Monitoring by Using Acoustic Emission.- 17 Failure Detection of Temporary Structures with Digital Image Correlation for Construction Safety Applications.- 18 Using Digital Image Correlation to Detect Cracking in Opalinus Shale.- 19 Early Detection Of Damage Mechanisms In Composites During Fatigue Tests.- 20 Implementing Noise Multi Frequency Stimulus and Realtime Analysis with Nonlinear Model Tracking.
Extensive amounts of operational data are generated over time by the health monitoring system of a structure's management system, yet there are few analysis algorithms which can tell the exact working state of the structure on-line. Good maintenance engineers need to know the exact location and state of the structural components after an earthquake or some attack or accident involving the structure, possibly within a matter of hours, and the client also demands a rapid diagnosis of the structure before making decisions on any necessary remedial work.
This book is devoted to the condition assessment of a structure under operational loading, with most of the illustrations related to a bridge deck under a group of moving vehicular loads. More generally, a wide variety of excitation forces can be exerted on a structure, from earthquake excitation, wind loading, vehicular loading or ambient excitation at the supports. Different algorithms may be used to enable real time identification with deterministic results on the state of the structure. This book also covers a group of damage-detection-oriented-models developed by the author, including a new decomposition of the system matrices of the beam element and plate element. Methods for extending the deterministic condition assessment to provide statistical information are also included. The methods and algorithms described can be implemented for the on-line condition assessment of a structure through model updating of the structure during the course of extreme loading such as an earthquake, or when under normal ambient excitation or operation excitation. Different sample structures are described and analysed, supplemented with major references.
This leading-edge work will be especially useful for researchers and graduate students, and it is also heavily rooted in advanced engineering practice.
Series: Structures and Infrastructures Series
Structures and Infrastructures comprises advanced-level books dealing with the maintenance, management, and cost analysis of structures and infrastructures. Topics treated include research, development and application of the most advanced technologies for analyzing, predicting, and optimizing the performance of structures and infrastructures, such as buildings, bridges, dams, underground construction, offshore platforms, pipelines, naval vessels, ocean structures, and nuclear power plants, as well as airplanes, aerospace, and automotive structures.
Themes featured are mathematical modeling, computer and experimental methods, practical applications in assessment and evaluation, construction and design for durability, decision making, deterioration modeling and aging, failure analysis, field testing, financial planning, inspection and diagnostics, life-cycle analysis and prediction, loads, maintenance strategies, management systems, nondestructive testing, maintenance and management optimization, specifications and codes, structural safety and reliability, system analysis, time-dependent performance, rehabilitation, repair, replacement, reliability and risk management, service life prediction, strengthening and whole life costing.
Описание: This book constitutes the thoroughly refereed proceedings of the 11th International Conference on e-Infrastructure and e-Services for Developing Countries, AFRICOMM 2019, held in Porto-Novo, Benin, in December 2019.
Описание: This volume contains the proceedings of the 13th International Conference on Damage Assessment of Structures DAMAS 2019, 9-10 July 2019, Porto, Portugal. It presents the expertise of scientists and engineers in academia and industry in the field of damage assessment, structural health monitoring and non-destructive evaluation. The proceedings covers all research topics relevant to damage assessment of engineering structures and systems including numerical simulations, signal processing of sensor measurements and theoretical techniques as well as experimental case studies.
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