ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Lattice structures have ranges of thermo-mechanical properties that suggest theirimplementation in ultralight structures, as well as for impact/blast amelioration systems and heatdissipation media. Considering that proper anisotropy of structure could increase load efficiency, twokinds of 2-D lattice materials designable in specific stiffness and strength of arbitrary direction havebeen brought forward: variational thickness cell and variational direction cell. The mechanicalproperties of variational thickness Kagome cell have been analyzed, including effective elasticmodulus, yield strength and elastic buckling strength in arbitrary directions. Since the shear bucklingof 2-D lattice materials is an important collapse mode especially when relative densities are low, shearbuckling strength of various 2-D lattice materials have also been calculated. It is found that comparedwith the diamond cell, the variational thickness Kagome cell of thickness ratio, m=0.5, possesses thesame elastic modulus and yield surface, and higher buckling strength
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/40/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.33-37.585.pdf
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