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ProceedingsmenuProceedings Proceedings Current Archives Announcements About About Challenging Glass Submissions Editorial Team Privacy Statement Contact Search Register Login / Home Vol. 8 (2022) Challenging Glass 8 8 will be held 23 & 24 June 2022 at Ghent University and is organised by Prof. Jan Belis ( Ghent University ), Dr. Freek Bos ( TU Eindhoven ) and Prof. Christian Louter ( TU Delft ). Cover image: Apple Marina Bay Sands, Singapore Photographer: Finbarr Fallon Published: 2022-06-20 Download Front Pages Front matter Editorial 8 Jan Belis, Freek Bos, Christian Louter Download Editorial Welcome at Challenging Glass 8! We gradually emerge from two difficult years of the covid-19 pandemic raging through the world in waves of constantly changing intensities. The associated uncertainties really put the ‘challenging’ into Challenging Glass this time. Still, some of our peers are not able to join us in Ghent, and they will be sorely missed. Nevertheless, we are happy to be able to return this year to the ‘real thing’: a live event which allows the international glass community to finally meet again in person. An excellent opportunity, especially within the... Keynote Speakers Challenging Glass Overview Keynote Speakers Keynote Speakers at 8: Stéphany Le Rhun – Eckersley O’Callaghan Prof. Julian Jones – Imperial College London Prof. Markus Feldmann – RWTH Aachen Robert Capel – Octatube Iris Rombouts – Octatube Sponsors 8 Challenging Glass Download Sponsor Overview Sponsors of 8: Platinum Sponsors: Saint-Gobain Eastman Gold Sponsors: Bellapart Dow Architectural Design & Geometries Robotic Reconfigurable Sand Molding for Doubly Curved Float Glass Rena Giesecke, Benjamin Dillenburger Download full paper The presented research investigates loose sand forming as a reconfigurable molding strategy for custom glass parts. Doubly curved glass parts usually require the labor-intense fabrication of individual ceramic or steel molds. Reconfigurable molds for glass are limited to specific modular geometries and require costly heat-resistant actuation mechanisms. Three-dimensionally (3D) printed sand molds for glass slumping require binders and cannot be reused. The objective of this research is to facilitate a waste-free fabrication of doubly curved glass elements and a facile, fast, low-cost... Topologically Optimized Cast Glass: A New Design Approach for Loadbearing Monolithic Glass Components of Reduced Annealing Time Wilfried Damen, Faidra Oikonomopoulou, Telesilla Bristogianni, Michela Turrin Read full paper at Glass Structures & Engineering journal (Springer) Up to now, fabricating cast glass components of substantial mass and/or thickness involves a lengthy and perplex annealing process. This has limited the use of this glass manufacturing method in the built environment to simple objects up to the size of regular building bricks, which can be annealed within a few hours. For the first time, structural topological optimization (TO) is investigated as an approach to design monolithic loadbearing... Three-dimensionally (3D) Printed Sand Molds for Custom Glass Parts Rena Giesecke, Benjamin Dillenburger Read full paper at Glass Structures & Engineering journal (Springer) The presented research investigates a digital fabrication method for custom glass building elements based on three-dimensionally (3D) printed molds. Custom glass parts with specific geometries usually require several steps of manufacturing, highly specialized craft, or machinery. Computer Numerical Control (CNC) milled steel molds are only suitable for large lot sizes due to their high cost and limited geometric freedom. Lost-wax casting requires several steps of manufacturing and post-processing. This paper investigates an accessible, low-cost process for shaping glass artifacts using... The Chronology of Historical Glass Constructions Franziska Rehde, Maria Heinrich, Alexandra Schmölder, Katharina Lohr, Christian Louter Download full paper Glass surfaces are characteristic elements of façades and make a significant contribution to the authenticity of architectural monuments. Glass as a material is considered an important testimony of its time. Depending on the manufacturing process, it differs both in surface and material composition. The period of high modernism (ca. 1880-1970) overlapped with the technical developments of the industrial revolution, which led from manual production to industrial production. The further development of manufacturing processes as well as the dimensions and qualities of the glass thus shaped... Glass Façade and Structure Movements Raul Corrales For designing and constructing a glazing façade the analysis of the foreseeing structural movements must be considered from the first steps of the project. This basic assessment could become quite complicate for those projects where large displacement are expected or just for projects where the design intent would not allow to use standard solutions. Frequently, when working with large glass units, the movement issue must be analysed in detail. The purpose of the presentation would be introducing different approaches to be considered when developing a glass façade concept. Which are the... CertBond COST Action CA18120 Prediction of Moisture Diffusion and Failure in Glass/Steel Adhesive Joints Ioannis Katsivalis, Stefanie Feih Read full paper at Glass Structures & Engineering journal (Springer) Glass/steel adhesive joints are being used increasingly in the construction industry as they offer significant structural advantages over conventional mechanical fastener approaches. However, adhesive joints are also known to be sensitive to moisture diffusion into the bondline, which reduces the interfacial bonding strength for hybrid glass/steel substrates. The effect of moisture on the performance degradation of glass/steel adhesive joints has been successfully predicted assuming adhesive property degradation but requires experimental determination of the affected moisture ingress... Examination of the Load-Bearing Behavior of a Bonded Edge Seal for Fluid-Filled Insulating Glass Units Alina Joachim, Felix Nicklisch, Alexander Freund, Bernhard Weller Download full paper This paper presents a study on the development of a bonded edge seal for fluid-filled insulating glass units. Such novel façade elements enable multifunctional building envelopes and an improved energy efficiency of buildings. The bonded edge seal of a fluid-filled glazing is highly stressed due to the hydrostatic pressure that acts in addition to typical loads on façades. The permanent exposure to the fluid may also cause severe aging effects. Therefore, the edge seal is designed in such a way that the chemical and physical stress splits on two functional zones. The first functional... Adhesive Solutions for Cast Glass Assemblies: Ground Rules Emerging from Built Case Studies on Adhesive Selection and Experimental Validation Faidra Oikonomopoulou, Telesilla Bristogianni Read full paper at Glass Structures & Engineering journal (Springer) Cast glass is a promising, three-dimensional expression of the material for architectural and structural applications, particularly for the creation of all-transparent, self-supporting structures and envelopes. Typically applied in the form of solid blocks, cast glass components can be used as repetitive units to comprise fully-transparent, cast glass masonry walls. To maximize transparency and ensure an even load distribution, the glass blocks are bonded together by a colourless adhesive. Currently, there is a lack of standardized structural specifications, strength data and building... Pre- and Post-Failure Experimental Bending Analysis of Glass Elements Coated by Aged Anti-Shatter Safety Films Silvana Mattei, Luca Cozzarini, Chiara Bedon Download full paper The main goal of Anti-Shatter Films (ASFs) applications for structural glass is to create a barrier able to keep together fragments and minimize risk after any...