Julien Berthe
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View article: Peatland-Type Sediment Filling in Valley Bottoms at the Head of Basins in a Stream Capture Context: The Example of the Bar and Petit Morin Peatland (Grand-Est, France)
Peatland-Type Sediment Filling in Valley Bottoms at the Head of Basins in a Stream Capture Context: The Example of the Bar and Petit Morin Peatland (Grand-Est, France) Open
The Quaternary saw numerous reorganizations of the hydrographic network, greatly modifying the hydrological network of these rivers. Eastern France is well known for many stream captures, described as early as the late 19th century. The ol…
View article: Analysis of the Evolution of Lowland Landslides in Temperate Environments According to Climatic Conditions Based on LiDAR Data: A Case Study from Rilly (Champagne Vineyard Region, Northeastern France)
Analysis of the Evolution of Lowland Landslides in Temperate Environments According to Climatic Conditions Based on LiDAR Data: A Case Study from Rilly (Champagne Vineyard Region, Northeastern France) Open
Lowland landslides are very common in temperate climates but are less studied than in mountainous regions. Although they are often less spectacular, they can cause considerable damage to the land they affect. In Champagne (France), this is…
View article: Influence des termes non-singuliers et de la vitesse de propagation de fissure sur KIC d'une résine époxy
Influence des termes non-singuliers et de la vitesse de propagation de fissure sur KIC d'une résine époxy Open
International audience
View article: Experimental characterization of material strain-rate dependence based on full-field Data-Driven Identification
Experimental characterization of material strain-rate dependence based on full-field Data-Driven Identification Open
International audience
View article: Determining singular and non-singular Williams’ expansion terms from full-field measurements: Consideration of structural effects on fracture behavior
Determining singular and non-singular Williams’ expansion terms from full-field measurements: Consideration of structural effects on fracture behavior Open
View article: A Geoheritage perspective on "Séré de Rivières" fortifications: LiDAR contributions to the assessment of war landform erasure in the Reims fortified belt (Marne, France)
A Geoheritage perspective on "Séré de Rivières" fortifications: LiDAR contributions to the assessment of war landform erasure in the Reims fortified belt (Marne, France) Open
As part of the national "Séré de Rivières" defensive system established after the Franco-Prussian War (1870-1871), 234 forts were constructed ex nihilo (1874-type forts). They are made of geomaterials of diverse origins and covered with ma…
View article: Hydrosystèmes anthropiques de la Montagne de Reims
Hydrosystèmes anthropiques de la Montagne de Reims Open
La Montagne de Reims, située entre Épernay et Reims, correspond à la terminaison orientale des plateaux tertiaires de la cuesta d’Île-de-France. Ce plateau forestier est drapé d’Argiles à Meulières qui entretiennent des milieux humides. Le…
View article: Caractérisation expérimentale de la ténacité dynamique d'une résine époxy
Caractérisation expérimentale de la ténacité dynamique d'une résine époxy Open
International audience
View article: Non-uniform spacing of transverse cracks in symmetric composite laminates
Non-uniform spacing of transverse cracks in symmetric composite laminates Open
View article: Contribution of airborne LiDAR on the mapping of vulnerability to groundwater pollution - Example of the drinking water catchment of Trépail
Contribution of airborne LiDAR on the mapping of vulnerability to groundwater pollution - Example of the drinking water catchment of Trépail Open
View article: The “Séré de Rivières” type fort: geomorphological approaches to polemolandscapes (GIS, LiDAR, military archives). Example of the fortified belt of Reims (France)
The “Séré de Rivières” type fort: geomorphological approaches to polemolandscapes (GIS, LiDAR, military archives). Example of the fortified belt of Reims (France) Open
The purpose of this research is to study the place of the “Séré de Rivières” type fortification in the geomorphological dimension of the war landscape. A multiscalar approach is proposed to analyze the geomorphological context of this defe…
View article: Evaluation of delamination propagation speed by means of high speed infrared thermography during low velocity impact tests
Evaluation of delamination propagation speed by means of high speed infrared thermography during low velocity impact tests Open
View article: Experimental validation of a rate-dependent Data-Driven stress Identification method
Experimental validation of a rate-dependent Data-Driven stress Identification method Open
View article: CHARACTERIZATION OF THE DYNAMIC TOUGHNESS OF COMPOSITE MATERIALS BY A MICROSCOPIC APPROACH
CHARACTERIZATION OF THE DYNAMIC TOUGHNESS OF COMPOSITE MATERIALS BY A MICROSCOPIC APPROACH Open
Experimental set-up with high-speed camera to evaluate dynamic toughness using digital image correlation and non-singular terms of Williams series
View article: Caractérisation de la décohésion dynamique des matériaux composites CMO
Caractérisation de la décohésion dynamique des matériaux composites CMO Open
International audience
View article: Experimental Protocol for Nonlinear Behavior Characterization of CFRP Materials under Dynamic Loadings
Experimental Protocol for Nonlinear Behavior Characterization of CFRP Materials under Dynamic Loadings Open
This study presents an experimental protocol for the characterization of the strain rate effects on the nonlinear behavior of an organic matrix composite. This protocol is based on the development of a displacement interrupted tensile test…
View article: Approches variationnelles de la rupture pour la prédiction de l'apparition des fissures transverses dans les stratifiés à plis croisés
Approches variationnelles de la rupture pour la prédiction de l'apparition des fissures transverses dans les stratifiés à plis croisés Open
View article: Rate dependency and ply thickness influence on transverse cracking evolution in cross-ply laminates
Rate dependency and ply thickness influence on transverse cracking evolution in cross-ply laminates Open
In this study, the rate dependency of transverse cracking evolution in cross-ply laminates is investigated for several 90° plies thicknesses. The crack detection methodology is based on a recently proposed protocol relying on the use of in…
View article: Review of “Rate dependency and ply thickness influence on transverse cracking evolution in cross-ply laminates”
Review of “Rate dependency and ply thickness influence on transverse cracking evolution in cross-ply laminates” Open
Open review of the article “Rate dependency and ply thickness influence on transverse cracking evolution in cross-ply laminates” by Berthe et al (https://dx.doi.org/10.46298/jtcam.7062)
View article: Definition of [ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e736" altimg="si5.svg"> <mml:mrow> <mml:mo>±</mml:mo> <mml:mn>45</mml:mn> <mml:mo>°</mml:mo> </mml:mrow> </mml:math> ] <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e746" altimg="si6.svg"> <mml:msub> <mml:mrow/> <mml:mrow> <mml:mi>n</mml:mi> <mml:mi>s</mml:mi> </mml:mrow> </mml:msub> </mml:math> specimen geometry to characterize CFRP non linear shear behavior in dynamic loading
Definition of [ ] specimen geometry to characterize CFRP non linear shear behavior in dynamic loading Open
View article: On the Divergence Mechanisms Analysis of a Vibrating Blade Subjected to Repetitive Rubs With an Abradable Coating
On the Divergence Mechanisms Analysis of a Vibrating Blade Subjected to Repetitive Rubs With an Abradable Coating Open
Aeronautical compressor fans, currently, operate with minimal blade–casing clearance. Therefore, this makes the occurrence of rub events very likely. Under specific circumstances, the blade undergoes excessive amplification of contact-indu…
View article: GPUCorrel: A GPU accelerated Digital Image Correlation software written in Python
GPUCorrel: A GPU accelerated Digital Image Correlation software written in Python Open
View article: Metrological assessment of multi‐sensor camera technology for spatially‐resolved ultra‐high‐speed imaging of transient high strain‐rate deformation processes
Metrological assessment of multi‐sensor camera technology for spatially‐resolved ultra‐high‐speed imaging of transient high strain‐rate deformation processes Open
The present work proposes a metrological route for capturing spatially‐resolved ultra‐high‐speed kinematic full‐field data from high strain‐rate experiments and multi‐sensor camera technology. This paper focuses, from an application point …
View article: Experimental investigation of the strain‐rate effects on the failure of composite materials with off‐axis tensile tests on unidirectional plies
Experimental investigation of the strain‐rate effects on the failure of composite materials with off‐axis tensile tests on unidirectional plies Open
The present study experimentally investigates the mechanical response of T700/M21 Carbon Fibre Reinforced Polymers subjected to coupled shear and transverse tension at intermediate strain rates ranging from 10 −3 to 15 s −1 . Off‐axis tens…
View article: Experimental Investigation of the Failure Rate Dependency of Composite Materials Using Off-Axis Tensile Tests
Experimental Investigation of the Failure Rate Dependency of Composite Materials Using Off-Axis Tensile Tests Open
The present study investigates the mechanical response of T700/M21 Carbon Fiber Reinforced Polymers submitted to coupled shear and transverse tension at intermediate strain-rates ranging from 0.001 to 15 s−1. The experimental investigation…
View article: Inertial impact test of a pre-notched PMMA sample, raw dataset: Raw images, raw outputs and elements for post-processing
Inertial impact test of a pre-notched PMMA sample, raw dataset: Raw images, raw outputs and elements for post-processing Open
This dataset contains the data obtained from an inertial impact test of a pre-notched PMMA sample. Both the raw data from the experiment and some post-processed data are provided. File contents: - Videos: folder that conta…
View article: Inertial impact test of a pre-notched PMMA sample, raw dataset: Raw images, raw outputs and elements for post-processing
Inertial impact test of a pre-notched PMMA sample, raw dataset: Raw images, raw outputs and elements for post-processing Open
This dataset contains the data obtained from an inertial impact test of a pre-notched PMMA sample. Both the raw data from the experiment and some post-processed data are provided. File contents: - Videos: folder that conta…
View article: Prediction of Damages Induced by a Low-Velocity Impact on Last Generation Composite Laminates
Prediction of Damages Induced by a Low-Velocity Impact on Last Generation Composite Laminates Open
View article: Towards a Normative Protocol for Dynamic Shear Tests on [±45°] CMO Specimens: Geometry Validation
Towards a Normative Protocol for Dynamic Shear Tests on [±45°] CMO Specimens: Geometry Validation Open
View article: Experimental and Numerical Study of Damages Induced by Low-Velocity Impact on 4th Generation Composite Laminates
Experimental and Numerical Study of Damages Induced by Low-Velocity Impact on 4th Generation Composite Laminates Open
The use of composite fiber reinforced polymer (CFRP) structures in the aircraft industry needs to demonstrate that they satisfy the same safety requirements as for metal structures. Among these requirements, impact damage tolerance is a ma…