文章基本信息

标题：Modelos Constitutivos Continuos Basados en Teorías Micromecánicas Termomecánicas Consistentes
本地全文：下载
作者：Guillermo Etse ; María M. Nieto ; Juan M. Parnás 等
期刊名称：Mecánica Computacional
印刷版ISSN：2591-3522
出版年度：2001
卷号：XX
期号：5
页码：187-194
出版社：CIMEC-INTEC-CONICET-UNL
摘要：The micropolar constitutive theory is reformulated within the general framework of the microplane concept in order to obtain constitutive equations and models including available and more precise information of the complex microstructure of
engineering materials like concrete and other composites. The main objective is the macroscopic modeling and description of anisotropic material response behaviors by means of the well-known microplane theory when applied to Cosserat continua.
A thermodynamically consistent concept is considered to derive the so called microplane-based micropolar theory. The main assumption of the present proposal is the integral relation between the macroscopic and the microscopic free energy by Carol, Jirasek and Bazant (2000) whereby the microplane laws are chosen such that the macroscopic Clausius-Duhem inequality is fully satisfied. This theoretical
framework is considered to derive both elastic and elastoplastic microplane-based micropolar models.