Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Mohamed Sahbi Loukil"'
Publikováno v:
Journal of Composite Materials. 55:3925-3942
Intralaminar cracking in relatively thick 90-plies of [[Formula: see text]]s laminates is analyzed using experimental data for two Glass fiber/Epoxy (GF/EP) material systems. Weibull parameters for transverse failure stress of the 90-ply are obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f23369fc4e649de4281fb33db2069ae
https://doi.org/10.1177/00219983211027346
https://doi.org/10.1177/00219983211027346
Intralaminar cracking during cyclic loading in laminates with distributed failure stress in 90-plies
Methodology for cracking evolution simulation in 90-plies during cyclic loading is suggested in this paper. It includes using low crack density (where the neighboring cracks do not interact with each other) data from quasi-static and cyclic testing (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1dedc260c604ab83187596f83111307f
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-185808
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-185808
Autor:
Mohamed Sahbi Loukil, Janis Varna
Publikováno v:
Journal of Composite Materials. 54:1161-1176
The concept of the “effective stiffness” for plies in laminates containing intralaminar cracks is revisited presenting rather accurate fitting expressions for the effective stiffness dependence on crack density in the ply. In this article, the ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11b13445654be6b5dbee1b1d5496a79a
https://doi.org/10.1177/0021998319874369
https://doi.org/10.1177/0021998319874369
Autor:
Mohamed Sahbi Loukil, Janis Varna
Publikováno v:
International Journal of Damage Mechanics. 29:547-569
The crack opening and crack sliding displacements of both faces of an intralaminar crack are the main parameters defining the significance of each crack in laminate stiffness degradation, according to the previously published GLOB-LOC approach for sy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ade82123e6cd3e4cdd9780b82585973
https://doi.org/10.1177/1056789519866000
https://doi.org/10.1177/1056789519866000
This paper presents a new discrete parametrization method for simultaneous topology and material optimization of composite laminate structures, referred to as Hyperbolic Function Parametrization (HFP). The novelty of HFP is the way the candidate mate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7861bb8d204738bff42166bf94c416f5
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-180351
http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-180351
Publikováno v:
Composite Structures. 261:113312
The effect of using thin plies to increase the bearing strength of composite laminates has been investigated. A series of 5 laminates of theoretically identical stiffness with varying proportions of thin plies were manufactured using a single materia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2443ffac3ed2ad9d18c2bb0dcb69adf1
https://doi.org/10.1016/j.compstruct.2020.113312
https://doi.org/10.1016/j.compstruct.2020.113312
Autor:
Mohamed Sahbi Loukil, Janis Varna
Publikováno v:
Journal of Composite Materials. 51:1945-1959
The old concept of the effective stiffness of a 90-layer with intralaminar cracks is revisited performing 3-D FEM parametric analysis of symmetric and balanced laminates. It is shown, focusing on the effective transverse modulus, that the expected de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e3207349dd058e6e7e30c1cd169f779
https://doi.org/10.1177/0021998316658965
https://doi.org/10.1177/0021998316658965
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 82:244-252
Simple approach based on Classical Laminate Theory (CLT) and effective stiffness of damaged layer is suggested for bending stiffness determination of laminate with intralaminar cracks in surface 90-layers and delaminations initiated from intralaminar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::89c686569f238ac36b7be335d82e512a
https://doi.org/10.1016/j.compositesa.2015.11.012
https://doi.org/10.1016/j.compositesa.2015.11.012
Thermoelastic constants of symmetric laminates with cracks in 90-layer: application of simple models
Publikováno v:
Plastics, Rubber and Composites. 42:157-166
The change of thermoelastic properties of cross-ply and quasi-isotropic laminates with intralaminar cracks in layers is analysed. Predictions are performed using previously derived general expressions for stiffness of symmetric damaged laminates as d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52af9156dcb5f7edd78c66b5491fcb8f
https://doi.org/10.1179/1743289811y.0000000064
https://doi.org/10.1179/1743289811y.0000000064
Publikováno v:
Experimental Techniques. 39:38-45
The degradation of the elastic properties of composite laminates with intralaminar cracks is caused by reduced stress in the damaged layer which is mainly due to two parameters: the crack opening displacement (COD) and the crack sliding displacement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8a1a11c9752466d4bc22f7228a913f8
https://doi.org/10.1111/ext.12013
https://doi.org/10.1111/ext.12013