Volume 98, Number 1, April 2012
|Number of page(s)||5|
|Section||Condensed Matter: Structural, Mechanical and Thermal Properties|
|Published online||30 March 2012|
Competition between in-plane buckling and bending collapses in nanohoneycombs
Laboratory of Bio-Inspired Nanomechanics “Giuseppe Maria Pugno”, Department of Structural, Geotechnical and Building Engineering, Politecnico di Torino - I-10129, Torino, Italy, EU
2 National Institute of Nuclear Physics, National Laboratories of Frascati - Via E. Fermi 40, I-00044, Frascati, Italy, EU
3 National Institute of Metrological Research - Strada delle Cacce 91, I-10135, Torino, Italy, EU
Accepted: 24 February 2012
The classical hexagonal honeycomb theory for the uniaxial loading case, developed by Gibson and Ashby, considers buckling of the cell walls parallel to one symmetry axis. In general, buckling may also occur in the cell walls inclined with respect to the two symmetry axes. Therefore, in this letter, under the uniaxial loading conditions, we derive the critical stresses of buckling and bending collapses of nanohoneycombs, for which the surface effect is included. Furthermore, the competition between the two failure modes is studied. The present theory could be used to design new nanoporous materials, e.g., scaffolds for the regenerative medicine or energy-absorption materials.
PACS: 62.20.M – / 61.43.Gt – / 61.46.-w –
© EPLA, 2012
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.