Conservational integrals of the fourth-order phase field model for brittle fracture via Noether theorem

F Peng, W Huang, ZQ Zhang, TF Guo, YE Ma… - Engineering Fracture …, 2021 - Elsevier
As a regularization method for modeling fracture phenomenon, the phase field method
cannot accurately capture the location of crack tip. J-integral is an important physical …

On the nonlinear continuum theory of dislocations: a gauge field theoretical approach

E Agiasofitou, M Lazar - Journal of Elasticity, 2010 - Springer
A nonlinear continuum theory of material bodies with continuously distributed dislocations is
presented, based on a gauge theoretical approach. Firstly, we derive the canonical …

Continuously dislocated elastic bodies with a neo-Hookean like energy subjected to anti-plane shear

D Sfyris, N Charalambakis, VK Kalpakides - Journal of Elasticity, 2008 - Springer
In this paper, we consider a materially uniform but inhomogeneous body and we are
interested in three particular cases of inhomogeneities corresponding to three distinct …

Comparing the condition of strong ellipticity and the solvability for a purely elastic problem and the corresponding dislocated problem

D Sfyris - Mathematics and mechanics of solids, 2012 - journals.sagepub.com
The aim of this paper is a comparison of a purely elastic problem and the corresponding
dislocated one at two levels:(a) strong ellipticity; and (b) solvability. The corresponding …

Propagation of a plane wave to a materially uniform but inhomogeneous body

D Sfyris - Zeitschrift für angewandte Mathematik und Physik, 2011 - Springer
We produce the equations of small deformations superimposed upon large for materially
uniform but inhomogeneous bodies and specialize to an isotropic material and to a …

[PDF][PDF] On the force acting on dislocations within nonlinear elastostatics

D Sfyris, N Charalambakis, VK Kalpakides - 2006 - researchgate.net
In the context of configurational mechanics, the question on the nature of the force acting on
a continuous distribution of dislocations in a hyperelastic body is examined. In the light of …

Política de formação continuada em educação especial e valorização docente: fatos e desafios

LF Sales - 2020 - repositorio.ufu.br
Esta pesquisa de mestrado, vinculada à Linha de Pesquisa “Estado, Políticas e Gestão da
Educação” do Programa de Pós-Graduação em Educação da Universidade Federal de …

[PDF][PDF] Εφαρμογή εννοιών από την υλική μηχανική των Eshelby και Maugin στην μη-γραμμική θεωρία συνεχώς κατανεμημένων εξαρθρώσεων

Δ Σφυρής - 2007 - ikee.lib.auth.gr
Χρωστάω πολλά και σε πολλούς. Ελπίζω να μην ξεχάσω κανέναν. Αν και η αποτύπωση σε
κόλλες χαρτιού των ευχαριστιών με μελάνι δεν είναι παρά η πράξη αναγνώρισης και η πράξη …

Continuously Dislocated Elastic Bodies Subjected to Antiplane Shear

Διαφάνεια 1 Continuously Dislocated Elastic Bodies Subjected to Antiplane Shear D. Sfyris*, N.
Charalambakis* and VK Kalpakides** *Department of Civil Engineering, Aristotle University of …

[ZITATION][C] Η έννοια της υλικής δυνάμης στην ανελαστικότητα

Ά Παπανικολάου - 2016