Zobrazeno 1 - 10
of 33
pro vyhledávání: '"M. Agoras"'
Publikováno v:
Journal of Applied Mechanics. 88
In this article, we carry out a theoretical investigation of the macroscopic response and field statistics in two-phase particulate composites with elasto-plastic constituents and random microstructures under cyclic loading conditions. To this end, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d71fba1ba16da33631075608036fab5b
https://doi.org/10.1115/1.4049308
https://doi.org/10.1115/1.4049308
Publikováno v:
International Journal of Solids and Structures. :668-686
This paper presents an alternative formulation of the incremental variational procedure (IVP) of Lahellec and Suquet (2013) to estimate the macroscopic response and field statistics in elasto-viscoplastic composites. The basic idea is to make use of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78a22549c41b6ee08c2d058eb01cf8ef
https://doi.org/10.1016/j.ijsolstr.2016.04.008
https://doi.org/10.1016/j.ijsolstr.2016.04.008
Publikováno v:
Mechanics of Materials. 90:47-68
A constitutive model is proposed for the macroscopic response of porous plastic metals at finite strains. Besides taking into account the porosity evolution, which leads to pressure sensitivity and dilatant response, the model can also account for ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71e57c2d50e85f662561e11e43b56c00
https://doi.org/10.1016/j.mechmat.2015.01.011
https://doi.org/10.1016/j.mechmat.2015.01.011
Autor:
P. Ponte Castañeda, M. Agoras
Publikováno v:
International Journal of Solids and Structures. 51(5):981-1002
In this work, we propose a constitutive model for the finite-strain, macroscopic response of porous viscoplastic solids, accounting for deformation-induced changes in the size, shape and distribution of the voids. The model makes use of consistent ho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa23a3241bc1c2f5f692facb534adce9
Autor:
P. Ponte Castañeda, M. Agoras
Publikováno v:
Journal of the Mechanics and Physics of Solids. 61:701-725
Analytical estimates are obtained for the effective constitutive response of porous viscoplastic materials consisting of aligned ellipsoidal voids that are distributed randomly with “ellipsoidal” symmetry in the matrix material. These estimates a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d536197634b3248ee6f2586dc14e8075
https://doi.org/10.1016/j.jmps.2012.11.003
https://doi.org/10.1016/j.jmps.2012.11.003
Autor:
P. Ponte Castañeda, M. Agoras
Publikováno v:
Philosophical Magazine. 92:925-958
This paper presents a finite-strain, multi-scale constitutive model for semi-crystalline polymers, accounting explicitly for the current state and evolution of the underlying crystallographic, lamellar and morphological texture. Specifically, a semi-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1ab554a577326a2521d25d3f198be52
https://doi.org/10.1080/14786435.2011.637982
https://doi.org/10.1080/14786435.2011.637982
Autor:
M. Agoras, P. Ponte Castañeda
Publikováno v:
European Journal of Mechanics - A/Solids. 30:828-843
This work is concerned with the generalization of the “variational linear comparison” method of Ponte Castaneda (J. Mech. Phys. Solids 39 (1991) 45)) to multi-scale, random, heterogeneous material systems with nonlinear isotropic constituents. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b94a3dc8830b7cb614742eb3de74c3c4
https://doi.org/10.1016/j.euromechsol.2011.05.007
https://doi.org/10.1016/j.euromechsol.2011.05.007
Publikováno v:
Journal of the Mechanics and Physics of Solids. 57:1828-1850
In this paper, we investigate theoretically the possible development of instabilities in fiber-reinforced elastomers (and other soft materials) when they are subjected to finite-strain loading conditions. We focus on the physically relevant class of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8cfaab9ce18b2fe9b780ab6f84ab696
https://doi.org/10.1016/j.jmps.2009.08.001
https://doi.org/10.1016/j.jmps.2009.08.001
Publikováno v:
Journal of the Mechanics and Physics of Solids. 57:268-286
This work presents a new constitutive model for the effective response of fiber-reinforced elastomers at finite strains. The matrix and fiber phases are assumed to be incompressible, isotropic, hyperelastic solids. Furthermore, the fibers are taken t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::358b63d1ebe5e8ac72fd589ae01ac8ac
https://doi.org/10.1016/j.jmps.2008.10.014
https://doi.org/10.1016/j.jmps.2008.10.014
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 195:5094-5114
A constitutive model that describes the mechanical behavior of steels exhibiting “TRansformation Induced Plasticity” (TRIP) during martensitic transformation is presented. Multiphase TRIP steels are considered as composite materials with a ferrit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a99b0971304e7ee4999765300d633bc
https://doi.org/10.1016/j.cma.2005.09.026
https://doi.org/10.1016/j.cma.2005.09.026