期刊
FINITE ELEMENTS IN ANALYSIS AND DESIGN
卷 39, 期 3, 页码 187-205出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0168-874X(02)00066-5
关键词
micropolar; finite element; Poisson's ratio; honeycomb
A two-dimensional triangular finite element formulation including an extra degree of freedom was derived on the basis of Eringen's micropolar elasticity theory. The linear triangular element and a corresponding computer program were developed to investigate the relation between the Poisson's ratio of re-entrant honeycomb structure using various structural geometric parameters.. According to Pur numerical results, the honeycomb structure can exhibit a negative Poisson's ratio with the appropriate ' re-entrant angle. We also found that the Poisson's ratio values varied when changing the honeycomb structure cell rib length and width. (C) 2002 Elsevier Science B.V. All rights reserved.
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