Доступ предоставлен для: Guest
Портал Begell Электронная Бибилиотека e-Книги Журналы Справочники и Сборники статей Коллекции
Nanoscience and Technology: An International Journal
ESCI SJR: 0.228 SNIP: 0.484 CiteScore™: 0.37

ISSN Печать: 2572-4258
ISSN Онлайн: 2572-4266

Nanoscience and Technology: An International Journal

Ранее издавался как Nanomechanics Science and Technology: An International Journal

DOI: 10.1615/NanomechanicsSciTechnolIntJ.v6.i2.40
pages 135-160

MODEL OF ANISOTROPIC ELASTOPLASTICITY IN FINITE DEFORMATIONS ALLOWING FOR THE EVOLUTION OF THE SYMMETRY GROUP

Massimo Cuomo
Department of Civil Engineering and Architecture, University of Catania, Italy
Mario Fagone
Department of Civil and Environmental Engineering, University of Firenze, Italy

Краткое описание

A constitutive model for finite deformation anisotropic elastoplasticity, developed within the framework of the multiplicative decomposition of the deformation gradient and of the theory of the structural tensors is discussed. The main goal of the paper is to analyze the extension of finite deformation plasticity to the case that material directions can evolve due to mechanical actions. This is obtained by considering the structural tensors as internal variables and introducing thermodynamic forces conjugated to them. The internal energy is assumed to depend on the elastic strain tensor and on the structural tensors, so that, employing Clausius−Duhem dissipation inequality, evolution equations for plastic deformation and for irreversible changes in the structural tensors are obtained that can consist of rotation of the material direction or also of the modification of the norm of the material directors. Examples show that the model can be used for studying the response of fiber materials like soft tissues, amorphous polymers, etc.


Articles with similar content:

Modeling the Particle Size and Interfacial Hardening Effects in Metal Matrix Composites with Dispersed Particles at Decreasing Microstructural Length Scales
International Journal for Multiscale Computational Engineering, Vol.7, 2009, issue 4
Rashid K. Abu Al-Rub
STRENGTH AND LONGEVITY OF POLYMERS AND COMPOSITES UNDER VARIABLE TEMPERATURE−FORCE EXTERNAL CONDITIONS
Composites: Mechanics, Computations, Applications: An International Journal, Vol.1, 2010, issue 1
A. A. Valishin, E. M. Kartashov, T. S. Stepanova
Multiscale Modeling of Point and Line Defects in Cubic Lattices
International Journal for Multiscale Computational Engineering, Vol.5, 2007, issue 3-4
John Clayton, Peter W. Chung
GENERALIZATION OF THE SURFACE TRACTION DEPENDENCE OF INTERACTIONS BETWEEN PORES/HOLES VIA A PECULIAR INSTANCE OF SUPERPOSITION OF APPLIED STRESSES AND RESULTANT STRAIN ENERGIES
Journal of Porous Media, Vol.16, 2013, issue 7
Kostas Davanas
EFFECTIVE THERMOELASTIC PROPERTIES OF HETEROGENEOUS THERMOPERISTATIC BAR OF RANDOM STRUCTURE
International Journal for Multiscale Computational Engineering, Vol.13, 2015, issue 1
Valeriy A. Buryachenko, Chen Wanji, Yang Shengqi