Publications

Mechanics of materials

Hierarchically guided in situ nanolaminography for the visualisation of damage nucleation in alloy sheets

Hierarchical guidance is developed for three-dimensional (3D) nanoscale X-ray imaging, enabling identification, refinement, and tracking of regions of interest (ROIs) within specimens considerably exceeding the field of view. This opens up new…

Mathias Hurst, Lukas Helfen, Thilo Morgeneyer, Heikki Suhonen, Ante Buljac, François Hild, Jussi-Petteri Suuronen, Tilo Baumbach, Daniel Hänschke

Scientific Reports - 2023

Representation Theory

Rationality of normal forms of isotropy strata of a representation of a compact Lie group

In this article we study the isotropy stratification of a linear representation $V$ of a compact Lie group $G$. We prove that the closed isotropy strata are real algebraic manifolds and that for each isotropy subgroup $H$, every rational invariant…

Perla Azzi, Rodrigue Desmorat, Julien Grivaux, Boris Kolev

Engineering Sciences

Automated conformal mesh generation chain for woven composites based on CT-scan images with low contrasts

A novel approach to generate conformal meshes of woven composites at the mesoscopic scale from low-contrast CT-scan images with reconstruction artifacts is presented. The segmentation of the CT-scans relies on texture analysis of the tomography to…

Guillaume Fourrier, Alain Rassineux, François-Henri Leroy, Martin Hirsekorn, Christian Fagiano, Emmanuel Baranger

Composite Structures - 2023

Materials

The analysis of internal stresses on a welded joint in Grade 91 steel under creep test loading: Synchrotron X-ray diffraction measurements and modelling

The analysis and understanding of creep damage of Grade 91 steel welded joints is an important topic in the energy industry. Creep tests on welded joints were carried out at 600 • C, 100 MPa and then interrupted at 0%, 10%, 30%, 50%, 80% of the…

Solenne Collomb, Xiaolei Chen, Jean-Philippe Tinnes, Thomas Schenk, Olivier Ferry, Svetlana Tsareva, Abdelkrim Redjaïmia, Alain Jacques

Materials Science and Engineering: A - 2023

Material chemistry

A simple and efficient process for the synthesis of 2D carbon nitrides and related materials

This manuscript describes a new process for the synthesis of very high quality 2D Covalent Organic Frameworks (COFs), such a C2N and CN carbon nitrides. The structure/quality of these materials is demonstrated by extensive cross-characterisations at…

Cora Moreira da Silva, Maxime Vallet, Clement Semion, Thomas Blin, Romuald Saint Martin, Jocelyne Leroy, Diana Dragoe, François Brisset, Cynthia Gilet, Régis Guillot,, Vincent Huc

Mechanics of materials

Characterization of glass fiber reinforced polymer via Digital Volume Correlation: Investigation of notch sensitivity

The results of in-situ cyclic tensile experiments performed on two dogbone specimens made of glass fiber mat reinforced polyester resin are presented (the second specimen contains a machined rectangular notch). The experimental data were obtained by…

Ana Vrgoč, Zvonimir Tomičević, Benjamin Smaniotto, François Hild

Mechanics of Materials - 2023

Mechanics of materials