693.932 PEOPLE
| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Dulieu-Barton, Janice M.
University of Bristol
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (60/60 displayed)
- 2024Optimization and mechanical response of modular infusion compaction and normalization
- 2023Flexible Photonics in Carbon and Glass Fiber Reinforced Polymers for New Multifunctionalitycitations
- 2023Bayesian prediction of the load response of composite structures to streamline certification approaches
- 2023Predicting the effect of lightning strike damage on the structural response of CFRP wind blade sparcap laminatescitations
- 2023Adhesively bonded joint shear test characterization using a modified arcan fixture
- 2023A tunnelling crack density evolution model for FRP laminates subjected to cyclic multi-axial strain-controlled loadingcitations
- 2023Flexible Photonics in Carbon and Glass Fiber Reinforced Polymers for New Multifunctionality:Exploring the Advances, Challenges, and Opportunitiescitations
- 2023Lay-up effect on the open-hole shear strength of composite laminatescitations
- 2023Towards assessment of fatigue damage in composite laminates using thermoelastic stress analysiscitations
- 2022COMBINED DIC-INFRARED THERMOGRAPHY FOR HIGH STRAIN RATE TESTING OF COMPOSITES
- 2021Modelling damage in multidirectional laminates subjected to multi-axial loadingcitations
- 2021On the source of the thermoelastic response from orthotropic fibre reinforced composite laminatescitations
- 2021Assessment of the heterogeneous microstructure in the vicinity of a weld using thermographic measurements of the full-field dissipative heat sourcecitations
- 2021Development of an integrated sacrificial sensor for damage detection and monitoring in composite materials and adhesively bonded jointscitations
- 2021Modelling damage in multidirectional laminates subjected to multi-axial loading:ply thickness effects and model assessmentcitations
- 2020Microstructural Assessment of 316L Stainless Steel Using Infrared Thermography Based Measurement of Energy Dissipation Arising from Cyclic Loadingcitations
- 2020A model for the mixed mode crack propagation in composite laminates under cyclic loadings
- 2020Ply thickness and fibre orientation effects in multidirectional composite laminates subjected to combined tension/compression and shearcitations
- 2020Real-time through-thickness and in-plane strain measurement in Carbon Fibre Reinforced Polymer composites using planar optical Bragg gratingcitations
- 2019Damage in CFRP composites subjected to simulated lighting strikes - Assessment of thermal and mechanical responsescitations
- 2019A simple nonlinear constitutive model based on non-associative plasticity for UD compositescitations
- 2019A simple nonlinear constitutive model based on non-associative plasticity for UD composites: development and calibration using a Modified Arcan Fixturecitations
- 2019Enhancement of the electrical and thermal properties of unidirectional carbon fibre/epoxy laminates through the addition of graphene oxidecitations
- 2018A damage-based model for mixed-mode crack propagation in composite laminatescitations
- 2018Delamination prediction on CFRP materials subjected to a lightning strike
- 2018A novel fixture for determining the tension/compression-shear failure envelope of multidirectional composite laminatescitations
- 2018Identification of lightning strike damage using Pulse Thermography through integration of thermal data
- 2018Damage in CFRP composites subjected to simulated lighting strike
- 2017Fatigue damage evolution in GFRP laminates with constrained off-axis pliescitations
- 2017The Influence of Graphene Oxide on the electrical conduction in unidirectional CFRP laminates for wind turbine blade applications
- 2017Reshaping the testing pyramid: utilisation of data-rich NDT techniques as a Means to Develop a ‘High Fidelity’ Component and Sub-structure Testing Methodology for Composites
- 2017Reshaping the testing pyramid
- 2017A stochastic multiaxial fatigue model for off-axis cracking in FRP laminatescitations
- 2017Heat response of unipolar lightning impulse and DC current component conducted through CFRP samples used for wind turbine sparcaps
- 2017Lightning protection of CFRP wind turbine blades - What is the dominant cause of failure: Specific energy or charge?
- 2017Finite element modelling of a series of austenitic stainless steel 316 L weldments to inform thermoelastic stress analysis residual stress assessment
- 2017Reducing the electrical anisotropy in unidirectional CFRP materials for wind turbine blade applications
- 2016Identification of kissing defects in adhesive bonds using infrared thermographycitations
- 2016Automated counting of off-axis tunnelling cracks using digital image processingcitations
- 2016A methodology for characterizing the interfacial fracture toughness of sandwich structures using high speed infrared thermographycitations
- 2015Fracture behaviour at tri-material junctions of crack stoppers in sandwich structurescitations
- 2015Influence of thermomechanical interaction effects on the failure behaviour of polymer foam cored sandwich panelscitations
- 2015The effect of temperature on the failure modes of polymer foam cored sandwich structurescitations
- 2012Determination of mechanical properties of PVC foam using a modified Arcan fixture
- 2012Identification of constitutive properties of composite materials under high strain rate loading using optical strain measurement techniques
- 2011On impact damage detection and quantification for CFRP laminates using structural response data only
- 2011Approaches to synchronise conventional measurements with optical techniques at high strain ratescitations
- 2010Application of optical measurement techniques to high strain rate deformations in composite materials
- 2010Derivation of temperature dependent material properties of polymer foam core materials using optical extensometry
- 2010Thermomechanical interaction effects in composite sandwich structures ? initial experimental analysis and derivation of mechanical properties
- 2010Through thickness stress distributions in pultruded GRP materials
- 2010The manufacturing procedure for aerospace secondary sandwich structure panelscitations
- 2010Effect of core crush on honeycomb sandwich panels
- 2009Impact damage detection and quantification in CFRP laminates; a precursor to machine learning
- 2009Thermoelastic stress analysis of composite materials and structures
- 2009Identification of impact damage in CRRP laminates using the NDT approach
- 2008Damage localisation in a stiffened composite panel
- 2007Damage location in a stiffened composite panel using lamb waves and neural networks
- 2007Thermoelastic stress analysis of sandwich structures with core junctions
- 2000Thermoelastic investigation of impact damaged woven GRP composites
Places of action
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article
Assessment of the heterogeneous microstructure in the vicinity of a weld using thermographic measurements of the full-field dissipative heat source
Abstract
During a material deformation process, part of the mechanical energy is dissipated as heat due to thermodynamically irreversible processes occurring at the microscale of the material. In particular, part of the plastic deformation energy is transformed into heat and is referred to as “intrinsic dissipation” as it is intrinsic to the material behaviour. The intrinsic dissipation is a heat source that is sensitive to microstructural states it can be used to identify different microstructural regions resulting from material processing such as welding. To determine the heat source in a full-field manner, it is necessary to use an infrared camera to measure any temperature rise in a specimen undergoing elastic cyclic loading. Unlike the intrinsic dissipative heat source, the temperature change is sensitive to thermal exchanges with the surroundings. Hence, the thermomechanical heat diffusion equation is used to determine the full-field dissipative heat from the thermographic temperature measurement by implementing an image processing procedure based on least squares fitting enabled by specially devised experimental approach. The procedure is verified by deriving both the thermoelastic and dissipative heat sources from a ‘hole-in-plate’ specimen manufactured from 316L stainless steel, i.e. a specimen with a known stress distribution. The approach is then applied to a 316L laser welded specimen and it is demonstrated that the different microstructures resulting from the welding process can be identified with the procedure. The heterogeneous microstructure is confirmed using micrographs and further verified by the different stress-strain behaviour obtained for each microstructural region using Digital Image Correlation (DIC).