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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/22623

Title: A novel manufacturing strategy for bio-inspired cellular structures
Authors: Torres-Sanchez, Carmen
Corney, Jonathan R.
Keywords: Porosity gradient
Bio-inspired structure
Polymeric foam
Cellular structure
Design engineering
Acoustic field
Issue Date: 2011
Publisher: © Inderscience
Citation: TORRES-SANCHEZ, C. and CORNEY, J., 2011. A novel manufacturing strategy for bio-inspired cellular structures. International Journal of Design Engineering, 4 (1), pp.5-22.
Abstract: This paper presents a novel manufacturing method for cellular materials with a graded porosity distribution. The motivation for creating a gradient of porosity in materials has been inspired by nature and aspires to mimic natural structures so their intrinsic advantages (e.g., optimised mechanical properties) can be exploited. Many engineering applications (e.g., thermal, acoustics, mechanical, structural and tissue engineering) require porosity tailored structures. However, current manufacturing processes are currently unable to mass-produce these foams. In this work, low power-low frequency ultrasonic irradiation has been used to excite polymeric foaming melts that, once solidified, contained different porosity distributions throughout in their solid matrix. This was possible by controlling the amount of energy imposed on the samples. The generation of porosity gradients that resembles those of natural cellular structures (e.g., bones, stems) opens up new opportunities in the design and manufacture of bio-inspired materials that can solve challenging technological problems.
Description: Closed access.
Version: Published
DOI: 10.1504/IJDE.2011.041406
URI: https://dspace.lboro.ac.uk/2134/22623
Publisher Link: http://dx.doi.org/10.1504/IJDE.2011.041406
ISSN: 1751-5874
Appears in Collections:Closed Access (Mechanical, Electrical and Manufacturing Engineering)

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