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Modeling and Testing of Laminated Glass
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Modeling and Testing of Laminated Glass

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced and Functional Ceramics and Glasses".

Deadline for manuscript submissions: closed (20 January 2022) | Viewed by 8184

Special Issue Editors

Prof. Ing. Jan Zeman

E-Mail Website
Guest Editor
Department of Mechanics, Faculty of Civil Engineering, CTU in Prague, Czech Republic
Interests: materials; mechanical properties; finite element analysis; mechanical behavior of materials
Prof. Ing. Michal Šejnoha

E-Mail Website
Guest Editor
Department of Mechanics, Faculty of Civil Engineering, CTU in Prague, Czech Republic
Interests: micromechanics; damage modeling of heterogeneous materials; geomechanics

Special Issue Information

Dear Colleagues,

This Special Issue, “Modeling and Testing of Laminated Glass”, will address advances in experimental testing and numerical or analytical modeling of the mechanical response of laminated glass plates, including fracture. So far, laminated glass structures have found many applications for engineering, industry, and the military. In the context of civil engineering, security windows, doors or walls are used in embassies, airports, shops, banks, or recently as transparent walls to stop potential terrorist attacks at important monuments. In addition to structures preventing human-made threats, laminated glass is also an attractive material for buildings that are supposed to withstand extreme loading from natural events, such as seismicity, extreme winds or other climatic exposures.

It is our pleasure to invite you to submit original research papers within the scope of this Special Issue.

Prof. Ing. Jan Zeman
Prof. Ing. Michal Šejnoha
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Materials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Laminated glass
  • Glass fracture
  • Interlayer
  • Experimental testing
  • Damage modeling
  • Residual strength
  • Impact resistance

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Published Papers (2 papers)

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Research

29 pages, 10348 KiB  
Article
Phase-Field Fracture Modelling of Thin Monolithic and Laminated Glass Plates under Quasi-Static Bending
by Jaroslav Schmidt, Alena Zemanová, Jan Zeman and Michal Šejnoha
Materials 2020, 13(22), 5153; https://doi.org/10.3390/ma13225153 - 16 Nov 2020
Cited by 8 | Viewed by 2798
Abstract
A phase-field description of brittle fracture is employed in the reported four-point bending analyses of monolithic and laminated glass plates. Our aims are: (i) to compare different phase-field fracture formulations applied to thin glass plates, (ii) to assess the consequences of the dimensional [...] Read more.
A phase-field description of brittle fracture is employed in the reported four-point bending analyses of monolithic and laminated glass plates. Our aims are: (i) to compare different phase-field fracture formulations applied to thin glass plates, (ii) to assess the consequences of the dimensional reduction of the problem and mesh density and refinement, and (iii) to validate for quasi-static loading the time-/temperature-dependent material properties we derived recently for two commonly used polymer foils made of polyvinyl butyral or ethylene-vinyl acetate. As the nonlinear response prior to fracture, typical of the widely used Bourdin–Francfort–Marigo model, can lead to a significant overestimation of the response of thin plates under bending, the numerical study investigates two additional phase-field fracture models providing the linear elastic phase of the stress-strain diagram. The typical values of the critical fracture energy and tensile strength of glass lead to a phase-field length-scale parameter that is challenging to resolve in the numerical simulations. Therefore, we show how to determine the fracture energy concerning the applied dimensional reduction and the value of the length-scale parameter relative to the thickness of the plate. The comparison shows that the phase-field models provide very good agreement with the measured stresses and resistance of laminated glass, despite the fact that only one/two cracks are localised using the quasi-static analysis, whereas multiple cracks evolve during the experiment. It was also observed that the stiffness and resistance of the partially fractured laminated glass can be well approximated using a 2D plane-stress model with initially predefined cracks, which provides a better estimation than the one-glass-layer limit. Full article
(This article belongs to the Special Issue Modeling and Testing of Laminated Glass)
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27 pages, 7873 KiB  
Article
Elastic Critical Moment for the Lateral–Torsional Buckling (LTB) Analysis of Structural Glass Beams with Discrete Mechanical Lateral Restraints
by Dario Santo, Silvana Mattei and Chiara Bedon
Materials 2020, 13(11), 2492; https://doi.org/10.3390/ma13112492 - 29 May 2020
Cited by 17 | Viewed by 4445
Abstract
Structural glass beams and fins are largely used in buildings, in the form of primary load-bearing members and bracing systems for roof or facade panels. Several loading and boundary conditions can be efficiently solved by means of bonded composites that involve the use [...] Read more.
Structural glass beams and fins are largely used in buildings, in the form of primary load-bearing members and bracing systems for roof or facade panels. Several loading and boundary conditions can be efficiently solved by means of bonded composites that involve the use of laminated glass sections. Additionally, the so-obtained glass members are often characterized by high slenderness. To this aim, several literature studies were dedicated to the lateral–torsional buckling (LTB) behavior of laterally unrestrained (LU) glass elements, with the support of full-scale experiments, analytical models, or finite element (FE) numerical investigations. Standardized design recommendations for LU glass members in LTB are available for designers. However, several design issues still require “ad hoc” (and often expensive) calculation studies. In most of the cases, for example, the mechanical interaction between the structural components to verify involves various typologies of joints, including continuous sealant connections, mechanical point fixings, or hybrid solutions. As a result, an accurate estimation of the theoretical LTB critical moment for such a kind of laterally restrained (LR) element represents a first key issue toward the definition and calibration of generalized design recommendations. Careful consideration should be spent for the description of the intrinsic features of materials in use, as well as for a combination of geometrical and mechanical aspects (i.e., geometry, number, position of restraints, etc.). In this paper, the attention is focused on the calculation of the elastic critical buckling moment of LR glass beams in LTB. Existing analytical approaches of the literature (mostly developed for steel constructional members) are briefly recalled. An additional advantage for extended parametric calculations is then taken from finite element (FE) numerical analyses, which are performed via the LTBeam or the ABAQUS software codes. The actual role and the effect of discrete mechanical restraints are, thus, explored for selected configurations of practical interest. Finally, the reliability of simplified calculation approaches is assessed. Full article
(This article belongs to the Special Issue Modeling and Testing of Laminated Glass)
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