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

id acadia04_076
authors Hanna, Sean
year 2004
title Modularity and Flexibility at the Small Scale: Evolving Continuous Material Variation with Stereolithography
source Fabrication: Examining the Digital Practice of Architecture [Proceedings of the 23rd Annual Conference of the Association for Computer Aided Design in Architecture and the 2004 Conference of the AIA Technology in Architectural Practice Knowledge Community / ISBN 0-9696665-2-7] Cambridge (Ontario) 8-14 November, 2004, 76-87
summary In this paper, we introduce a technique by which the internal material properties of an object can be optimised at a microstructural level (5x10-5m) to counteract the forces that are applied to it. These can then be fabricated using the rapid prototyping method of stere­olithography. The proposed technique is analogous to principles of mass customization and takes advantage of a flexible module to cre­ate complex structures in a manner that is computationally efficient and effective. The process is two-staged, in which a genetic algorithm evolves the topology of the microstructure and a second algorithm incorporating Finite Element Analysis then optimises the geometry. The examples shown are designed specifically for the fabrication tech­nique, but the method and general principles are applicable to struc­tural problems at any scale.
keywords genetic algorithm, rapid prototyping, stereolithography, materials
series ACADIA
email s.hanna@cs.ucl.ac.uk
full text file.pdf (833,470 bytes)
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100%; open Haroun Mahdavi, S., and Hanna, S. (2003) Find in CUMINCAD An Evolutionary approach to microstructure optimisation of stereolithographic models , Proceedings of CEC2003, The Congress on Evolutionary Computation
100%; open Haroun Mahdavi, S., and S. Hanna (2004) Find in CUMINCAD Optimising Continuous Microstructures: A Comparison of Gradient-Based and Stochastic Methods , Proceedings of SCIS & ISIS 2004, The Joint 2nd International Conference on Soft Computing and Intelligent Systems and 5th International Symposium on Advanced Intelligent Systems (Forthcoming).
100%; open Lee, S-E., and Chen, J. C. (1999) Find in CUMINCAD Mass-customization methodology for an apparel industry with a future , Journal of industrial technology 16(1). The National Association of Industrial Technology
100%; open Molecular Geodesics (1999) Find in CUMINCAD Rapid prototyping helps duplicate the structure of life , April 99 Rapid Prototyping Report
100%; open Pine, B. J. II. (1993) Find in CUMINCAD Mass customization , Boston: Harvard Business School Press
100%; open Sischka, J., Hensel, M., Menges, A., and Weinstock, M. (2004) Find in CUMINCAD Manufacturing complexity , Architectural design, 74(3). London: Wiley-Academy

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