Gergely Molnar

Gergely Molnar
CNRS / INSA · LaMCoS

PhD

About

17
Publications
8,359
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
317
Citations

Publications

Publications (17)
Article
The study deals with the mechanical behaviour of laterally loaded structural glass laminated with polyvinyl butyral (PVB) interlayer. To evaluate the influence of the mechanical behaviour of PVB in structural glass plates, a finite element model was developed. The numerical model was verified on the basis of the results from the literature and by o...
Article
This study deals with a statistically defined mechanical effect of the inhomogeneities remaining in structural glass plates after the manufacturing by floating process. Our goal was to define a stress limit that will not be exceeded with a 95% probability. We used Monte Carlo simulation to calculate the stress peaks that appear in structural glass....
Article
The continuum scale description of the plasticity of silicate glasses is a difficult task. In addition to significant amount of densification, it has been shown that, depending upon composition, there is a more or less pronounced coupling of yield stress with pressure. Moreover, the scant experimental results make it difficult it build up reliable,...
Article
Full-text available
The elastoplastic behavior of sodium silicate glasses is studied at different scales as a function of composition and pressure, with the help of quasistatic atomistic simulations. The samples are first compressed and then sheared at constant pressure to calculate yield strength and permanent plastic deformations. Changes occurring in the global res...
Article
In order to model brittle fracture, we have implemented a two and three dimensional phase-field method in the commercial finite element code Abaqus/Standard. The method is based on the rate-independent variational principle of diffuse fracture. The phase-field is a scalar variable between 0 and 1 which connects broken and unbroken regions. If its v...
Article
Full-text available
A high-speed study of tempered glass fracture propagation is presented. Tempered glass is used worldwide both architecturally and in the automotive industry, often playing a role in structural integrity. To accurately predict the brittle failure of the structural elements, it is essential to study crack initiation and formation. Cracks were initiat...
Article
Silicate glasses are macroscopically brittle but ductile at the micron scale. This plastic response is complex: in open structure materials, such as amorphous silica, plastic yield results in significant densification. While, more compact structures (e.g. soda-silicate glasses) are known to suppress densification and promote shear flow. We have car...
Article
The structural and elastic mechanical properties of xNa2O–(100-x)SiO2 sodium silicate glasses were computed and analyzed at different scales, using atomistic simulations and coarse-grain methods based on physical principles. The numerical simulations were performed on large samples (~ 1003 Å3 box size with ~ 70 000 atoms), and the results were comp...
Article
Using molecular statics calculations, sodium silicate glasses are expanded in an isotropic manner to analyze the composition dependence of the mechanical response. Increasing the amount of sodium makes the systems more ductile. The tensile strength is reduced and the final load bearing strain limit is increased. Hydrostatic strain hardening appears...
Conference Paper
Full-text available
Present work is focused on the investigation of soda-lime-silica glass. The material is completely amorphous, therefore a 3D random network generation was done to produce the initial geometry. The systems were verified with neutron diffraction results. The simulation was done in two steps. First the geometry was generated and verified, then the sys...
Article
Full-text available
Resume Present study deals with the mesostructure analysis of the structural glass. The subject is about to prepare a comprehensive mechanical analysis, aimed on the understanding of the multiscale mechanical behaviour of soda-lime-silica glass used as an architectural element. After a brief description of the micro and mesostructure of glass we wi...
Article
The study deals with the mechanical behaviour of laterally loaded structural glass laminated with polyvinyl butyral (PVB) interlayer. To evaluate the influence of the mechanical behaviour of PVB in structural glass plates, a finite element model was developed. The numerical model was verified on the basis of the results from the literature and by o...

Network

Cited By