Lee, JH Choi, JB Choi, K 2024-01-21T19:16:32Z 2024-01-21T19:16:32Z 2021-09-04 1996-08-01 0022-2461 https://pubs.kist.re.kr/handle/201004/144353 Honeycomb structures are widely used in structural applications because of their high strength per density. Re-entrant honeycomb structures with negative Poisson's ratios may be envisaged to have many potential applications. In this study, an homogenization finite element method (FEM) technique developed for the analysis of spatial ly periodic materials is applied for the analysis of linear elastic responses of the regular and re-entrant honeycomb structures. Young's modulus of the regular honeycomb increased with volume fraction. Poisson's ratio of the regular honeycomb structure decreased from unity as volume fraction increased. The re-entrant honeycomb structure had a negative Poisson's ratio, its value dependent upon the inverted angle of cell ribs. Young's modulus of the re-entrant honeycomb structure decreased as the inverted angle of cell ribs increased. The results are in good agreement with previous analytical results. This homogenization theory is also applicable to three-dimensional foam materials-conventional and re-entrant. English CHAPMAN HALL LTD NEGATIVE POISSON RATIO CELLULAR MATERIALS NONLINEAR PROPERTIES Application of homogenization FEM analysis to regular and re-entrant honeycomb structures Article 10.1007/BF00352675 1 JOURNAL OF MATERIALS SCIENCE, v.31, no.15, pp.4105 - 4110 JOURNAL OF MATERIALS SCIENCE 31 15 4105 4110 scie scopus A1996VB33100026 2-s2.0-0030214868 Materials Science, Multidisciplinary Materials Science Article NEGATIVE POISSON RATIO CELLULAR MATERIALS NONLINEAR PROPERTIES