Browsing by Author "Turhan G.D."

Now showing 1 - 4 of 4

Citation - Scopus: 3
3d Printing With Bacterial Cellulose-Based Bioactive Composites for Design Applications
(Education and research in Computer Aided Architectural Design in Europe, 2022) Turhan G.D.; Afsar S.; Ozel B.; Doyuran A.; Varinlioglu G.; Bengisu, Murat
The bacterial cellulose (BC) biofilms are explored in design applications as replacements to petroleum-based materials in order to overcome the irreversible effects of the Anthropocene. Unlike biomaterials, designers as mediators could collaborate with bioactive polymers as a form of wetware to manufacture living design products with the aid of novel developments in biology and engineering. Past and ongoing experiments in the literature show that BC has a strong nanofibril structure that provides adhesion for attachment to plant cellulose-based networks and it could grow on the surfaces of the desired geometry thanks to its inherited, yet, controllable bio-intelligence. This research explores BC-based bioactive composites as wetware within the context of digital fabrication in which the methodology involves distinct, yet integrated, three main stages: Digital design and G-code generation (software stage); BC cultivation and printable bioactive composite formulation (wetware stage); digital fabrication with a customized 3D printer (hardware stage). The results have shown that the interaction of BC and plant-based cellulose fibers ofjute yarns has enhanced the structural load-bearing capacity of the form against compressive forces, while pure BC is known only by its tensile strength. Since the outcomes were fabricated with the use of a bioactive material, the degradation process also adds a fourth dimension: Time, by which the research findings could further establish a bio-upcycling process of wastes towards biosynthesis of valuable products. Moreover, developing a BC-based bioactive filament indicates potentially a feasible next step in the evolution of multiscale perspectives on the growth of habitable living structures that could reinforce the interaction between nature and architecture through collaboration with software, hardware, and wetware in innovative and sustainable ways. © 2022, Education and research in Computer Aided Architectural Design in Europe. All rights reserved.
Citation - Scopus: 2
Activating Co-Creation Methodologies of 3d Printing With Biocomposites Developed From Local Organic Wastes
(Education and research in Computer Aided Architectural Design in Europe, 2022) Afsar S.; Estevez A.T.; Abdallah Y.K.; Turhan G.D.; Oze B.; Doyuran A.
Compared to the take-make-waste-oriented linear economy model, the circular model has been studied since the 1980s. Due to consumption-oriented lifestyles along with having a tendency of considering waste materials as trash, studies on sustainable materials management (SMM) have remained at a theoretical level or created temporary and limited impacts. To ensure SMM supports The European Green Deal, there is a necessity of developing top-down and bottom-up strategies simultaneously, which can be metaphorized as digging a tunnel from two different directions to meet in the middle of a mountain. In parallel with the New European Bauhaus concept, this research aims to create a case study for boosting bottom-up and data-driven methodologies to produce short-loop products made of bio-based biocomposite materials from local food & organic wastes. The Architecture departments of two universities from different countries collaborated to practice these design democratization methodologies using data transfer paths. The 3D printable models, firmware code, and detailed explanation of working with a customized 3D printer paste extruder were shared using online tools. Accordingly, the bio-based biocomposite recipe from eggshell, xanthan gum, and citric acid, which can be provided from local shops, food & organic wastes, was investigated concurrently to enhance its printability feature for generating interior design elements such as a vase or vertical gardening unit. While sharing each step from open-source platforms with adding snapshots and videos allows further development between two universities, it also makes room for other researchers/makers/designers to replicate the process/product. By combining modern manufacturing and traditional crafting methods with materials produced with DIY techniques from local resources, and using global data transfer platforms to transfer data instead of products themselves, this research seeks to unlock the value of co-creative design practices for SMM. © 2022, Education and research in Computer Aided Architectural Design in Europe. All rights reserved.
Citation - Scopus: 3
An Integrated Structural Optimization Method for Bacterial Cellulose-Based Composite Biofilms
(Education and research in Computer Aided Architectural Design in Europe, 2021) Turhan G.D.; Varinlioglu G.; Bengisu, Murat
Today's technologies offer exciting new horizons to reconfigure the realm of digital design and fabrication with the use of biologically active materials. Some of the recent works have been exploring the potentials of utilizing biological systems either as mathematical models for digital design or as the material itself in digital fabrication. As one of the novel processes of recent design thinking approaches, this paper presents an example for the collaboration with living organisms and a multidisciplinary process in which the overall structure is based on the analysis of biological material properties, mechanical data acquisition and the integration to digital optimization. In this regard, bacterial cellulose-based composite biofilms were grown and tested for their tensile properties, followed by a proposal to integrate mechanical data to digital optimization for catenary forms to better engage with real world applications. The findings have shown that the use of catenary geometry for such biologically active materials that are relatively novel to the structural use has proven effective for different prototypes thanks to their natural and customized material properties such as the ability to self-stand and biodegrade. © 2021, Education and research in Computer Aided Architectural Design in Europe. All rights reserved.
Citation - Scopus: 5
Work of Art in the Age of Metaverse: Exploring Digital Art Through Augmented Reality
(Education and research in Computer Aided Architectural Design in Europe, 2022) Varinlioglu G.; Oguz K.; Turkmen D.; Ercan I.; Turhan G.D.
The creation of artworks in the metaverse as unique files that exist on a blockchain world of the non-fungible tokens (NFTs) have revitalized discussions over the uniqueness of a work of art. Similar to the art world market in Second Life, this has presented a novel way to collect imported or natively digital art. This raises the following questions: What are the processes that artwork undergoes in the web 3.0 or metaverse? What constitutes the reproduction/recreation of a work of art? Which tools can be exploited to create more content for this universe? How does this new approach affect ownership, scarcity and authenticity? Unlike art productions that find a place in museums or galleries, Darağaç Art Collective independently uses the streets both as their location, and as their canvas. This creates the need to store the artworks as fully as possible in any form available. With this aim, a team of architects, designers and software engineers designed, implemented and tested a mobile application to represent and recreate the experience of the artworks in the digital environment. The artworks of independent artists were collected virtually and compiled in a relational database over the years, and are displayed in their geographical coordinates, and represented in the 3D world. After discussion on how to represent the artworks, it was decided that some only exist in videos and photographs, therefore, we decided to use the archaeology of digital data and present them in 3D space, to ensure their continued existence once they had been performed or exhibited. Illustrated by the case of our augmented application, this paper discusses the reproduction of ownership and scarcity of artworks in terms of preserving a cultural heritage in the metaverse. © 2022, Education and research in Computer Aided Architectural Design in Europe. All rights reserved.