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Large‐Deformation Behavior of Honeycomb‐Structured Polymer Sheets as a Function of Polar Angle
Author(s) -
Jin KwangYong,
Kim DaeYoon,
Kim SoEun,
Kuo ShiaoWei,
Lee Joong Hee,
Lyu MinYoung,
Hwang SeokHo,
Gent Alan N.,
Nah Changwoon,
Jeong KwangUn
Publication year - 2011
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201000708
Subject(s) - materials science , ultimate tensile strength , polar , deformation (meteorology) , composite material , polymer , honeycomb , symmetry (geometry) , stacking , contact angle , honeycomb structure , stress (linguistics) , polar coordinate system , geometry , chemistry , physics , linguistics , mathematics , organic chemistry , philosophy , astronomy
To construct the structure/property relationships of patterned polymer architectures depending on symmetry, the large‐deformation behavior of 2D HSPS with respect to the polar angle was studied. Holes aligned along the HSPS apex were more effective in decreasing tensile force and reducing stress concentration than those located along the plane. On varying the polar angle from 0 to 30°, the tensile force fluctuated up and down like an undamped negative sinusoidal wave with a wavelength of 15°. Additionally, molecular orientations of HSPS were monitored in situ. By comparing experimental measurements with computer simulations, it was concluded that the tensile force depends on the number of holes as well as the orientation of the axes of the honeycomb structure.