Zobrazeno 1 - 10
of 77
pro vyhledávání: '"George A. Gazonas"'
Autor:
George A. Gazonas, Burak Aksoylu
Publikováno v:
Journal of Peridynamics and Nonlocal Modeling. 2:379-400
It is a challenge to choose the appropriate kernel function in nonlocal problems. We tackle this challenge from the aspect of nonlocal wave propagation and study the dispersion relation at the analytical level. The kernel function enters the formulat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0ee37fd87086bbcb2eb10cf5cecef26
https://doi.org/10.1007/s42102-020-00034-x
https://doi.org/10.1007/s42102-020-00034-x
Autor:
George A. Gazonas, Burak Aksoylu
Publikováno v:
Journal of Peridynamics and Nonlocal Modeling. 2:1-25
This work aims to provide a comprehensive treatment on how to enforce inhomogeneous local boundary conditions (BC) in nonlocal problems in 1D. In prior work, we have presented novel governing operators with homogeneous BC. Here, we extend the constru
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c7abb7959351ec0f5db6152fb52e8f8
https://doi.org/10.1007/s42102-019-00022-w
https://doi.org/10.1007/s42102-019-00022-w
Publikováno v:
Communications on Applied Mathematics and Computation. 2:261-303
We study the convergence and asymptotic compatibility of higher order collocation methods for nonlocal operators inspired by peridynamics, a nonlocal formulation of continuum mechanics. We prove that the methods are optimally convergent with respect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c78af17783b23a662ae52a169e9fbb28
https://doi.org/10.1007/s42967-019-00051-8
https://doi.org/10.1007/s42967-019-00051-8
Autor:
Ani P. Velo, George A. Gazonas
Publikováno v:
Archive of Applied Mechanics. 89:581-590
Here we analyze by means of the z-transform a system of recursive relations for stress and particle velocity, previously developed to study impact problems in Goupillaud-type layered elastic media. As a result, we are able to obtain finite series rep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29276fab715720e6e3bc1af07ef514f7
https://doi.org/10.1007/s00419-019-01515-2
https://doi.org/10.1007/s00419-019-01515-2
Publikováno v:
Mechanics of Materials. 129:113-138
An internal state variable (ISV) model for polyether ether ketone (PEEK) is developed to capture experimental measurements conducted below its glass transition temperature. The model is based on the response of two relaxing components put in parallel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ae25fa55c4f549f9fe222ce68b574ef
https://doi.org/10.1016/j.mechmat.2018.11.005
https://doi.org/10.1016/j.mechmat.2018.11.005
Publikováno v:
Journal of the Mechanics and Physics of Solids. 159:104716
This work begins by applying peridynamics and phase-field modeling to predict 1-d interface motion with inertia in an elastic solid with a non-monotone stress–strain response. In classical nonlinear elasticity, it is known that subsonic interfaces
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9ed0c5a08b6592a9cd3e9e9d8c28061
https://doi.org/10.1016/j.jmps.2021.104716
https://doi.org/10.1016/j.jmps.2021.104716
Publikováno v:
Zhang, Z, Zhang, L, Jasa, J, Negahban, M & Gazonas, G 2022, ' Molecular sources of ratcheting in poly-dispersed polycarbonate ', International Journal of Fatigue, vol. 154, 106567 . https://doi.org/10.1016/j.ijfatigue.2021.106567
Molecular dynamics (MD) of polycarbonate is used to understand the molecular bases of ratcheting and sensitivity to variation in polymer chain lengths. We find that ratcheting is almost insensitive to molecular weight in mono-disperse systems, but no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::57d66d6f5fc08d74c501c11598d9eb14
https://doi.org/10.1016/j.ijfatigue.2021.106567
https://doi.org/10.1016/j.ijfatigue.2021.106567
Publikováno v:
Archive of Applied Mechanics. 88:1275-1304
We consider several one-dimensional impact problems involving finite or semi-infinite, linear elastic flyers that collide with and adhere to a finite stationary linear viscoelastic target backed by a semi-infinite linear elastic half-space. The impac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdb6efc8de11d7b5b21a088b7c6b299e
https://doi.org/10.1007/s00419-018-1372-z
https://doi.org/10.1007/s00419-018-1372-z
Publikováno v:
International Journal of Impact Engineering. 113:73-87
Edge-on impact experiments on AlON, a transparent ceramic with superior ballistic performance, show combined intergranular and transgranular fracture. An initial fast-propagating damage front transitions into slower-propagating localized cracks. We d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::720f9a5912f6275f34eb5eef4887ac16
https://doi.org/10.1016/j.ijimpeng.2017.11.010
https://doi.org/10.1016/j.ijimpeng.2017.11.010
Publikováno v:
International Journal of Fracture. 207:41-53
A hybrid method is presented that uses a representative volume element-based multiscale finite element technique combined with a peridynamics method for modeling fracture surfaces. The hybrid method dynamically switches from finite element computatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3785e9af07f4c61f46c181fab2eb329a
https://doi.org/10.1007/s10704-017-0218-y
https://doi.org/10.1007/s10704-017-0218-y