| 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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Pierron, Fabrice
Laboratoire de Mécanique et Procédés de Fabrication
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (41/41 displayed)
- 2024Into a rapid polymer characterization employing optical measurement systems and high-power ultrasonic excitationcitations
- 2021High strain rate elasto-plasticity identification using the Image-Based Inertial Impact (IBII) test part 1: Error quantificationcitations
- 2021Assessment of the heterogeneous microstructure in the vicinity of a weld using thermographic measurements of the full-field dissipative heat sourcecitations
- 2021Assessment of the heterogeneous microstructure in the vicinity of a weld using thermographic measurements of the full-field dissipative heat sourcecitations
- 2021Data rich imaging approaches assessing fatigue crack initiation and early propagation in a DS superalloy at room temperaturecitations
- 2021High strain rate elasto-plasticity identification using the Image-Based Inertial Impact (IBII) test part 2: Experimental validationcitations
- 2020Dynamic VFM to Identify Viscoplastic Parameters. Analysis of Impact Tests on Titanium Alloy
- 2020The off-axis IBII test for compositescitations
- 2020Microstructural assessment of 316L stainless steel using infrared thermography based measurement of energy dissipation arising from cyclic loadingcitations
- 2020Image-based inertial impact (IBII) tests for measuring the interlaminar shear moduli of composites
- 2019A Manual for Conducting Image-Based Inertial Impact (IBII) Tests
- 2019Dynamic VFM to Identify Viscoplastic Parameters. Analysis of Impact Tests on Titanium Alloy
- 2019Image-Based Inertial Impact Test for Characterisation of Strain Rate Dependency of Ti6Al4V Titanium Alloycitations
- 2019A computational approach to design new tests for viscoplasticity characterization at high strain-ratescitations
- 2019Characterising the compressive anisotropic properties of analogue bone using optical strain measurementcitations
- 2019A benchmark testing technique to characterize the stress–strain relationship in materials based on the spalling test and a photomechanical methodcitations
- 2018A novel image-based ultrasonic test to map material mechanical properties at high strain-ratescitations
- 2018Strain accumulation and fatigue crack initiation at pores and carbides in a SX superalloy at room temperaturecitations
- 2018Inertial impact tests to identify the plastic properties of metalscitations
- 2018Image-based inertial impact test for composite interlaminar tensile propertiescitations
- 2018Image-based high strain rate testing of orthopaedic bone cementcitations
- 2018A practical procedure for measuring the stiffness of foam like materialscitations
- 2018An image-based approach for measuring dynamic fracture toughness
- 2018Image-based high strain-rate testing for the characterization of viscoplasticity
- 2017Conception d’un essai purement inertiel pour la caractérisation du comportement dynamique de matériaux métalliques par la Méthode des Champs Virtuels
- 2017Characterisation of strain localisation processes during fatigue crack initiation and early crack propagation by SEM-DIC in an advanced disc alloycitations
- 2017Deformation mechanisms of idealised cermets under multi-axial loadingcitations
- 2014The application of digital volume correlation (DVC) to study the microstructural behaviour of trabecular bone during compressioncitations
- 2012Influence of the microstructural changes and induced residual stresses on tensile properties of wrought magnesium alloy friction stir weldscitations
- 2012Identification of constitutive properties of composite materials under high strain rate loading using optical strain measurement techniques
- 2011Texture evolution in Nd:YAG-laser welds of AZ31 magnesium alloy hot rolled sheets and its influence on mechanical propertiescitations
- 2011Full-field strain measurement and identification of composites moduli at high strain rate with the Virtual Fields Methodcitations
- 2010Comparison of two approaches for differentiating full-field data in solid mechanicscitations
- 2009Full-field evaluation of the onset of microplasticity in a steel specimen
- 2009Variation of transverse and shear stiffness properties of wood in a treecitations
- 2008Identification of viscoplastic parameters and characterization of Lüders behaviour using digital image correlation and the virtual fields methodcitations
- 2008Identification of heterogeneous constitutive parameters in a welded specimen: Uniform stress and virtual fields methods for material property estimationcitations
- 2008Identification of elasto-visco-plastic parameters and characterization of Lüders behavior using digital image correlation and the virtual fields methodcitations
- 2007Novel experimental approach for longitudinal-radial stiffness characterisation of clear wood by a single testcitations
- 2006Identification of the Through-Thickness Orthotropic Stiffness of Composite Tubes from Full-Field Measurementscitations
- 2006Experimental identification of a nonlinear model for composites using the grid technique coupled to the virtual fields methodcitations
Places of action
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article
Data rich imaging approaches assessing fatigue crack initiation and early propagation in a DS superalloy at room temperature
Abstract
Crack initiation and early propagation behavior of the directionally solidified (DS) superalloy CM247LC has been assessed by data rich imaging approaches. These include conventional characterization methods such as replica record analysis, 3D optical surface imaging, optical and scanning electron microscopy (SEM) as well as more recent techniques like digital image correlation (DIC) and synchrotron radiation computed tomography (SRCT). Three modes of secondary crack behaviors were found during evaluation of the fatigue process. The early stages<br/>of fatigue damage were controlled by microstructure-induced cracking, mainly consisting of carbide cracking. Fatigue damage was then promoted via slip band cracking and opening mode controlled carbide-cracking. The mechanisms of these different cracking behaviors are associated with the plastic zone of the main crack tip. Even though the early localized strain levels were of the same intensity within slip bands and at the intersection siteswith carbides, carbide-induced cracking occurred prior to slip band cracking, characterized by SEM-DIC. This indicated that carbide-induced cracking was more likely to occur in the early stages of the fatigue process. Early crack growth behaviors were further investigated in situ at the microstructural scale via SRCT. The effect of<br/>carbides on crack initiation and propagation processes were evaluated in 3D. This revealed the phenomenonaround pores, that cracks simultaneously grew on different slip planes in 3D, contrary to previous theories that<br/>such cracks tend to grow on a single favourable slip plane (in polycrystalline alloys). The SRCT result demonstrates the importance and necessity of 3D characterization of the crack propagation behavior at sub-surface,<br/>which is not fully analyzed by 2D characterization.