CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id acadia16_488
id acadia16_488
authors Derme, Tiziano; Mitterberger, Daniela; Di Tanna, Umberto
year 2016
title Growth Based Fabrication Techniques for Bacterial Cellulose: Three-Dimensional Grown Membranes and Scaffolding Design for Biological Polymers
source ACADIA // 2016: POSTHUMAN FRONTIERS: Data, Designers, and Cognitive Machines [Proceedings of the 36th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-77095-5] Ann Arbor 27-29 October, 2016, pp. 488-495
summary Self-assembling manufacturing for natural polymers is still in its infancy, despite the urgent need for alternatives to fuel-based products. Non-fuel based products, specifically bio-polymers, possess exceptional mechanical properties and biodegradability. Bacterial cellulose has proven to be a remarkably versatile bio-polymer, gaining attention in a wide variety of applied scientific applications such as electronics, biomedical devices, and tissue-engineering. In order to introduce bacterial cellulose as a building material, it is important to develop bio-fabrication methodologies linked to material-informed computational modeling and material science. This paper emphasizes the development of three-dimensionally grown bacterial cellulose (BC) membranes for large-scale applications, and introduces new manufacturing technologies that combine the fields of bio-materials science, digital fabrication, and material-informed computational modeling. This paper demonstrates a novel method for bacterial cellulose bio-synthesis as well as in-situ self-assembly fabrication and scaffolding techniques that are able to control three-dimensional shapes and material behavior of BC. Furthermore, it clarifies the factors affecting the bio-synthetic pathway of bacterial cellulose—such as bacteria, environmental conditions, nutrients, and growth medium—by altering the mechanical properties, tensile strength, and thickness of bacterial cellulose. The transformation of the bio-synthesis of bacterial cellulose into BC-based bio-composite leads to the creation of new materials with additional functionality and properties. Potential applications range from small architectural components to large structures, thus linking formation and materialization, and achieving a material with specified ranges and gradient conditions, such as hydrophobic or hydrophilic capacity, graded mechanical properties over time, material responsiveness, and biodegradability.
keywords programmable materials, material agency, biomimetics and biological design
series ACADIA
type paper
last changed 2016/10/24 11:12

_id ecaade2016_203
id ecaade2016_203
authors Michalatos, Panagiotis and Payne, Andrew
year 2016
title Monolith: The Biomedical Paradigm and the Inner Complexity of Hierarchical Material Design
source Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 445-454
wos WOS:000402063700049
summary This paper discusses our ongoing research into hierarchical volumetric modeling and the external forces which are motivating a shift from the traditional boundary representation (also known as BREP) that has thus far dominated design software toward a more flexible voxel-based representation capable of describing complex variable material distributions. We present Monolith; a volumetric modelling application which explores hybrid forms of digital representations and new design workflows that extend a designer's ability to describe the material properties of a 3d model at the mesoscopic and even microscopic scales. We discuss the inherent complexities in volumetric modelling and describe the design opportunities which heretofore were unavailable using existing techniques.
keywords hierarchical materials; multi-material 3d printing; voxels
series eCAADe
last changed 2017/06/28 08:46

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