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rian seghir

41
Documents
Current affiliations
  • 1088548
Researcher identifiers
  • IdHAL rseghir
  • ORCID 0000-0002-2946-0161
  • Google Scholar : https://scholar.google.fr/citations?user=xh9n0PsAAAAJ
Contact
Web site
  • https://www.ec-nantes.fr/version-francaise/annuaire/m-rian-seghir

Presentation

PhD graduate (in 2012) with research background in numerical and experimental mechanics. My work deals with the development of full-field measurement techniques and thermomechanical characterization of metallic and polymeric materials. I focused, in the last years, to the identification of dynamic properties through full-field Ultra-High Speed Imaging and Inverse Methods. Since 2018, I am CNRS Reasearcher (CR) at the Research Institute in Civil and Mechanical Engineering (GeM) of Nantes.

Research domains


Skills

Research Engineering High strain-rate characterization crystal plasticity infrared thermography Digital Image Correlation Inverse methods

Publications

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Determining singular and non-singular Williams' expansion terms from full-field measurements: consideration of structural effects on fracture behaviour

Bastien Lammens , Gérald Portemont , Julien Berthe , Rian Seghir , Julien Réthoré
Theoretical and Applied Fracture Mechanics, In press
Journal articles hal-04446229v1
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Crack branching at low tip speeds: spilling the T

Elie Eid , Rian Seghir , Julien Réthoré
Journal of Theoretical, Computational and Applied Mechanics, 2023, pp.1-30. ⟨10.46298/jtcam.10172⟩
Journal articles hal-03817644v3
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Experimental investigation of the alternate recurrence of quasi-static and dynamic crack propagation in PMMA

Raphael Heinzmann , Rian Seghir , Syed Yasir Alam , Julien Réthoré
International Journal of Fracture, 2023, 242 (2), pp.227-245. ⟨10.1007/s10704-023-00717-8⟩
Journal articles hal-03975862v2
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Multiscale analysis of brittle failure in heterogeneous materials

Elie Eid , Rian Seghir , Julien Réthoré
Journal of the Mechanics and Physics of Solids, 2021, ⟨10.1016/j.jmps.2020.104204⟩
Journal articles hal-02978612v1
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Metrological assessment of multi‐sensor camera technology for spatially‐resolved ultra‐high‐speed imaging of transient high strain‐rate deformation processes

Adrien Vinel , Rian Seghir , Julien Berthe , Gérald Portemont , Julien Réthoré
Strain, 2021, 57 (4), pp.e12381
Journal articles hal-03236454v1
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An open-source Abaqus implementation of the phase-field method to study the effect of plasticity on the instantaneous fracture toughness in dynamic crack propagation

Gergely Molnar , Anthony Gravouil , Rian Seghir , Julien Réthoré
Computer Methods in Applied Mechanics and Engineering, 2020, ⟨10.1016/j.cma.2020.113004⟩
Journal articles hal-02541808v1
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Non-parametric material state field extraction from full field measurements

Adrien Leygue , Rian Seghir , Julien Réthoré , Michel Coret , Erwan Verron
Computational Mechanics, 2019, ⟨10.1007/s00466-019-01725-z⟩
Journal articles hal-02158197v1

A Novel Image-based Ultrasonic Test to Map Material Mechanical Properties at High Strain-rates

R. Seghir , F. Pierron
Experimental Mechanics, 2017, 58 (2), pp.183-206. ⟨10.1007/s11340-017-0329-4⟩
Journal articles hal-04494937v1

Influence of the Casting Process in High Temperature Fatigue of A319 Aluminium Alloy Investigated By In-Situ X- Ray Tomography and Digital Volume Correlation

Nora Dahdah , Nathalie Limodin , Ahmed El Bartali , Jean-François Witz , Rian Seghir
Procedia Structural Integrity, 2016, 2, pp.3057-3064. ⟨10.1016/j.prostr.2016.06.382⟩
Journal articles hal-01612309v1
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Influence of pores on crack initiation in monotonic tensile and cyclic loadings in lost foam casting A319 alloy by using 3D in-situ analysis

Long Wang , Nathalie Limodin , Ahmed El Bartali , Jean-Francois Witz , Rian Seghir
Materials Science and Engineering, 2016, 673, pp.362-372. ⟨10.1016/j.msea.2016.07.036⟩
Journal articles hal-01433827v1
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Damage Investigation in A319 Aluminium Alloy by X-ray Tomography and Digital Volume Correlation during In Situ High-Temperature Fatigue Tests

Nora Dahdah , Nathalie Limodin , Ahmed El Bartali , Jean-Francois Witz , Rian Seghir
Strain, 2016, 52 (4), pp.324-335. ⟨10.1111/str.12193⟩
Journal articles hal-01419328v1
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A Dedicated DIC Methodology for Characterizing Plastic Deformation in Single Crystals

Xiaogang Wang , Jean-François Witz , Ahmed El Bartali , Abdelali Oudriss , Rian Seghir
Experimental Mechanics, 2016, 56 (7), pp.1155-1167. ⟨10.1007/s11340-016-0159-9⟩
Journal articles hal-01358974v1
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Controlled mud-crack patterning and self-organized cracking of polydimethylsiloxane elastomer surfaces

Rian Seghir , S. Arscott
Scientific Reports, 2015, 5 (1), ⟨10.1038/srep14787⟩
Journal articles hal-02345522v1

Photo-hardenable and patternable PDMS/SU-8 hybrid functional material: A smart substrate for flexible systems

Rian Seghir , S. Arscott
Journal of Polymer Science Part B: Polymer Physics, 2015, 53 (18), pp.1281-1291. ⟨10.1002/polb.23773⟩
Journal articles hal-02345569v1
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Mechanically robust, electrically stable metal arrays on plasma-oxidized polydimethylsiloxane for stretchable technologies

Rian Seghir , S. Arscott
Journal of Applied Physics, 2015, 118 (4), pp.045309. ⟨10.1063/1.4927616⟩
Journal articles hal-02345538v1
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Microplasticity in Polycrystals: A Thermomechanical Experimental Perspective

Eric Charkaluk , Rian Seghir , Laurence Bodelot , Jean-Francois Witz , Philippe Dufrenoy
Experimental Mechanics, 2015, 55 (4), pp.741-752. ⟨10.1007/s11340-014-9921-z⟩
Journal articles hal-01235785v1
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An improved Lagrangian thermography procedure for the quantification of the temperature fields within polycrystals

Rian Seghir , Jean-Francois Witz , Laurence Bodelot , Eric Charkaluk , Philippe Dufrenoy
Quantitative InfraRed Thermography Journal, 2013, 10 (1), pp.74-95. ⟨10.1080/17686733.2013.785207⟩
Journal articles hal-00871131v1

Improvement of thermomechanical full-field analysis of metallic polycrystals using crystallographic data

Rian Seghir , Jean-Francois Witz , Eric Charkaluk , Philippe Dufrenoy
Mechanics & Industry, 2013, 13 (6), pp.395-403. ⟨10.1051/meca/2012035⟩
Journal articles hal-00863628v1
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Numerical and experimental estimation of thermomechanical fields heterogeneity at the grain scale of 316L stainless steel

Rian Seghir , Laurence Bodelot , Eric Charkaluk , Philippe Dufrenoy
Computational Materials Science, 2012, 53 (1), pp.464-473. ⟨10.1016/j.commatsci.2011.08.036⟩
Journal articles hal-00636682v1
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Experimental characterization of the dynamic toughness of epoxy resin

Bastien Lammens , Gerald Portemont , Julien Berthe , Rian Seghir , Julien Réthoré
ICEM 2023, Jul 2023, PORTO, Portugal
Conference papers hal-04305292v1
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Characterization of the dynamic toughness of composite materials by a microscopic approach

Bastien Lammens , Gerald Portemont , Julien Berthe , Rian Seghir , Julien Rethore
ICCM23, Jul 2023, BELFAST, Ireland
Conference papers hal-04219514v1
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Characterisation of the dynamic toughness of composite materials

Bastien Lammens , Gerald Portemont , Julien Berthe , Rian Seghir , Julien Réthoré
CFM 2022, Aug 2022, Nantes, France
Conference papers hal-03932297v1
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Image-based Stress Field Reconstruction in Complex Media

Rian Seghir , F Pierron , L Fletcher
Residual Stress, Thermomechanics and Infrared Imaging, Hybrid Techniques and Inverse Problems - Proceedings of the 2018 Annual Conference on Experimental and Applied Mechanics, Oct 2019, Greenville, United States
Conference papers hal-03154118v1

Low Cycle Fatigue of a Lost Foam Cast Al-Si-Cu alloy: study of the damage mechanisms with X-ray tomography and Digital Volume Correlation

Nathalie Limodin , Long Wang , Nora Dahdah , Ahmed El Bartali , Jean-Francois Witz
Fatigue 2018, May 2018, Poitiers, France
Conference papers hal-01807449v1
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Viscoelastic properties identification through innovative Image-Based DMTA strategy

Rian Seghir , Fabrice Pierron
CFM 2017 - 23ème Congrès Français de Mécanique, Aug 2017, Lille, France
Conference papers hal-03465321v1
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Isothermal low cycle fatigue of a lost foam cast Al-Si-Cu alloy: study of the damage mechanisms with synchrotron X-ray tomography and Digital Volume Correlation

Nathalie Limodin , Long Wang , Nora Dahdah , Ahmed El Bartali , Jean-Francois Witz
LCF8 Eighth International Conference on Low Cycle Fatigue, Jun 2017, Dresden, Germany. pp.41
Conference papers hal-01617612v1

Analysis of fatigue cracks initiation and growth in an Al-Si-Cu alloy using in-situ fatigue tests under synchrotron x-ray tomography coupled with digital volume correlation

Nathalie Limodin , Long Wang , Nora Dahdah , Ahmed El Bartali , Jean-Francois Witz
International Conf. on Fatigue Damage of Structural Materials XI, Sep 2016, Hyannis, United States
Conference papers hal-01736334v1

Influence of the casting microstructure on LCF damage mechanisms in an Al-Si alloy using X-ray tomography

Ahmed El Bartali , Long Wang , Nora Dahdah , Nathalie Limodin , Jean-Francois Witz
26th Colloquium on Fatigue mechanisms, Mar 2015, Brno, Czech Republic
Conference papers hal-01736324v1

Study of damage mechanisms in A319 aluminium alloy by X-ray tomography and Digital Volume Correlation

Nora Dahdah , Nathalie Limodin , Ahmed El Bartali , Jean-Francois Witz , Rian Seghir
Photomechanics, May 2015, Delft, Netherlands
Conference papers hal-01729131v1
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In situ fatigue tests under X-ray tomography: damage mechanisms in a cast Aluminium Silicon alloy

Nathalie Limodin , Long Wang , Nora Dahdah , Ahmed El Bartali , Jean-Francois Witz
9th European Solid Mechanics Conference (ESMC 2015), Jul 2015, Leganes-Madrid, Spain. pp.676
Conference papers hal-01736327v1
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Influence of the Casting Microstructure upon the Tensile Behaviour in A319 Al‐Si Alloy Investigated by X‐Ray Tomography and Digital Volume Correlation

Long Wang , Nathalie Limodin , Ahmed El Bartali , Julien Réthoré , Jean‐françois Witz
Second International Congress on 3D Materials Science, 2014, Annecy, France. pp.73-78, ⟨10.1007/978-3-319-48123-4_12⟩
Conference papers hal-01668787v1

Investigation of the work hardening stages of nickel single crystals from full-field strain measurements

X.G Wang , Abdelali Oudriss , Ahmed El Bartali , Jean-Francois Witz , Rian Seghir
Plasticité 2014, Apr 2014, Lyon, France
Conference papers hal-01770051v1
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Influence of the Lost Foam Casting Microstructure on Low Cycle Fatigue Damage of A319 Aluminum Alloy

Nora Dahdah , Nathalie Limodin , Ahmed El Bartali , Jean-Francois Witz , Rian Seghir
The 2nd International Congress on 3D Materials Science, Jun 2014, Annecy, France. pp.97-102, ⟨10.1007/978-3-319-48123-4_16⟩
Conference papers hal-01668786v1

Cyclic plasticity in duplex stainless steel

Rian Seghir , Ahmed El Bartali , Jean-Francois Witz , Philippe Dufrenoy , Eric Charkaluk
In Fatigue 2014, Mar 2014, Melbourne, Australia
Conference papers hal-01768660v1

Thermomechanical determination of the CRSS in a polycristal

Rian Seghir , X.G Wang , Ahmed El Bartali , Eric Charkaluk , Jean-Francois Witz
Photomechanics2013, May 2013, montpellier, France
Conference papers hal-01771079v1
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Apport de la texture dans l'analyse des champs thermomécaniques polycristallins

Rian Seghir , Jean-Fançois Witz , Eric Charkaluk , Philippe Dufrenoy
10e colloque national en calcul des structures, May 2011, Giens, France. pp.Clé USB
Conference papers hal-00592819v1
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Eléments expérimentaux et numériques sur le couplage thermoplastique à l'échelle des grains d'un matériau métallique

Rian Seghir , Eric Charkaluk , Philippe Dufrenoy
CFM 2009 - 19ème Congrès Français de Mécanique, Aug 2009, Marseille, France
Conference papers hal-03391486v1