Valdevit, Lorenzo and Jacobsen, Alan J. and Greer, Julia R. and Carter, William B. (2011) Protocols for the Optimal Design of Multi-Functional Cellular Structures: From Hypersonics to Micro-Architected Materials. Journal of the American Ceramic Society, 94 (S1). S15-S34. ISSN 0002-7820 http://resolver.caltech.edu/CaltechAUTHORS:20110712-113658723
Full text not available from this repository.
Use this Persistent URL to link to this item: http://resolver.caltech.edu/CaltechAUTHORS:20110712-113658723
Cellular materials with periodic architectures have been extensively investigated over the past decade for their potential to provide multifunctional solutions for a variety of applications, including lightweight thermo-structural panels, blast resistant structures, and high-authority morphing components. Stiffer and stronger than stochastic foams, periodic cellular materials lend themselves well to geometry optimization, enabling a high degree of tailorability and superior performance benefits. This article reviews a commonly established optimal design protocol, extensively adopted at the macro-scale for both single and multifunctional structures. Two prototypical examples are discussed: the design of strong and lightweight sandwich beams subject to mechanical loads and the combined material/geometry optimization of actively cooled combustors for hypersonic vehicles. With this body of literature in mind, we present a motivation for the development of micro-architected materials, namely periodic multiscale cellular materials with overall macroscopic dimensions yet with features (such as the unit cell or subunit cell constituents) at the micro- or nano-scale. We review a suite of viable manufacturing approaches and discuss the need for advanced experimental tools, numerical models, and optimization strategies. In analyzing challenges and opportunities, we conclude that the technology is approaching maturity for the development of micro-architected materials with unprecedented combinations of properties (e.g., specific stiffness and strength), with tremendous potential impact on a number of fields.
|Additional Information:||© 2011 The American Ceramic Society. Manuscript No. 28794. Received October 16, 2010; approved April 02, 2011. Article first published online: 29 Jun. 2011. The authors are grateful to DARPA for financial support through grant no. W91CRB-10-C-0305 on Materials with Controlled Microstructural Architecture (Judah Goldwasser, program manager). LV acknowledges partial funding from the California-Catalonia Engineering Program. JRG acknowledges the financial support from NSF CAREER Award (DMR-0748267) and ONR Grant no. N000140910883. WBC and AJJ also acknowledge prior DARPA support through contract no. W911NF-08-C-0038 and internal support funds from HRL. The authors dedicate this article to the memory of Anthony G. Evans, who inspired and directed much of the work on periodic cellular materials. His leadership, enthusiasm, and mentorship are dearly missed.|
|Group:||Kavli Nanoscience Institute|
|Official Citation:||Valdevit, L., Jacobsen, A. J., Greer, J. R., Carter, W. B. (2011), Protocols for the Optimal Design of Multi-Functional Cellular Structures: From Hypersonics to Micro-Architected Materials. Journal of the American Ceramic Society, 94: s15–s34. doi: 10.1111/j.1551-2916.2011.04599.x|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Jason Perez|
|Deposited On:||12 Jul 2011 21:08|
|Last Modified:||26 Nov 2012 03:46|
Repository Staff Only: item control page