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The homogenization method for the study of variation of Poisson's ratio in fiber composites

Stavroulakis Georgios, Theocaris, P. S

Απλή Εγγραφή


URIhttp://purl.tuc.gr/dl/dias/B106BC6A-4826-4582-AB16-8B00879A8C84-
Αναγνωριστικόhttps://doi.org/10.1007/s004190050165-
Γλώσσαen-
Μέγεθος15 pagesen
ΤίτλοςThe homogenization method for the study of variation of Poisson's ratio in fiber compositesen
ΔημιουργόςStavroulakis Georgiosen
ΔημιουργόςΣταυρουλακης Γεωργιοςel
ΔημιουργόςTheocaris, P. Sen
ΕκδότηςSpringer Verlagen
ΠερίληψηMaterials with specific microstructural characteristics and composite structures are able to exhibit negative Poisson's ratio. This fact has been shown to be valid for certain mechanisms, composites with voids and frameworks and has recently been verified for microstructures optimally designed by the homogenization approach. For microstructures composed of beams, it has been postulated that nonconvex shapes (with reentrant corners) are responsible for this effect. In this paper, it is numerically shown that mainly the shape, but also the ratio of shear-to-bending rigidity of the beams do influence the apparent (phenomenological) Poisson's ratio. The same is valid for continua with voids, or for composites with irregular shapes of inclusions, even if the constituents are quite usual materials, provided that their porosity is strongly manifested. Elements of the numerical homogenization theory and first attempts towards an optimal design theory are presented in this paper and applied for a numerical investigation of such types of materials.en
ΤύποςPeer-Reviewed Journal Publicationen
ΤύποςΔημοσίευση σε Περιοδικό με Κριτέςel
Άδεια Χρήσηςhttp://creativecommons.org/licenses/by/4.0/en
Ημερομηνία2015-10-11-
Ημερομηνία Δημοσίευσης1998-
Θεματική Κατηγορία--Cases, clinical reports, statisticsen
Θεματική Κατηγορία--Statistical dataen
Θεματική Κατηγορίαstatisticsen
Θεματική Κατηγορίαcases clinical reports statisticsen
Θεματική Κατηγορίαstatistical dataen
Βιβλιογραφική ΑναφοράP. S. Theocaris, G. E. Stavroulakis ,"The homogenization method for the study of variation of Poisson's ratio in fiber composites," Archive of Ap. Mech.,vol. 68, no.3, pp 281-295, April 1998.doi:10.1007/s004190050165en

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