Zobrazeno 1 - 10
of 60
pro vyhledávání: '"Sérgio Frascino Müller de Almeida"'
Autor:
Geraldo Maurício Cândido, Mirabel Cerqueira Rezende, Maurício Vicente Donadon, Sérgio Frascino Müller de Almeida
Publikováno v:
Polímeros, Vol 24, Iss 1, Pp 65-71 (2014)
A fractografia consiste no estudo detalhado da morfologia da superfície de fratura de materiais. Para isto, a técnica de microscopia eletrônica de varredura (MEV) é usualmente utilizada para determinar a causa de falha e a relação do modo de fa
Externí odkaz:
https://doaj.org/article/5eb58b00658e4aa4a0c40db8368ffa60
Autor:
Geraldo Maurício Cândido, Mirabel Cerqueira Rezende, Maurício Vicente Donadon, Sérgio Frascino Müller de Almeida
Publikováno v:
Polímeros, Vol 22, Iss 1, Pp 41-53 (2012)
Muitos componentes das modernas aeronaves estão sendo manufaturados em compósitos poliméricos. Laminados de resina epóxi modificada reforçada com fibras de carbono contínuas são empregados em estruturas primárias e secundárias para reduzir o
Externí odkaz:
https://doaj.org/article/1680eea6edfe4465b6d591d377d29ed0
Autor:
Alexandre Massayuki, Victor Lyra Namba, Sérgio Frascino Müller de Almeida, André Pelisser Cavalcante Souza
Publikováno v:
SAE Technical Paper Series.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::975b2fe0f1bfb29e9c2e4907bddae4bb
https://doi.org/10.4271/2020-36-0251
https://doi.org/10.4271/2020-36-0251
Publikováno v:
AIAA Scitech 2021 Forum: 11–15 & 19–21 January 2021Virtual/online event
AIAA Scitech 2021 Forum
AIAA Scitech 2021 Forum
There is a great demand for optimization of high performance composite structures, particularly in the aerospace sector. To avoid vibrational resonance in aerospace and naval structures, laminated plates can be designed using fundamental frequency co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d69ecfe152bf15380f1d161bf7663411
http://resolver.tudelft.nl/uuid:a9179bde-347c-4a88-b77c-74043876aae0
http://resolver.tudelft.nl/uuid:a9179bde-347c-4a88-b77c-74043876aae0
Publikováno v:
Composite Structures. 184:18-29
This article describes the development of closed form polynomial equations for compression and shear buckling to assess the effect of Bending-Twisting coupling on infinitely long laminated plates with simply supported edges. The equations are used to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::398ea1e49e28213bc04b52de4b3a5095
https://doi.org/10.1016/j.compstruct.2017.09.085
https://doi.org/10.1016/j.compstruct.2017.09.085
Publikováno v:
Composites Part A: Applied Science and Manufacturing. 100:150-160
Non-Crimp Fabric (NCF) materials are now available in a range of areal weights and layer architectures, including 0/45, 0/−45, 45/−45 and 0/90, which correspond to the standard ply orientations employed in traditional UD material lay-ups. The ben
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0df01d809625311e491ceacb39c25b3d
https://doi.org/10.1016/j.compositesa.2017.04.023
https://doi.org/10.1016/j.compositesa.2017.04.023
Publikováno v:
Composite Structures. 164:10-22
This article presents details of the development of a special class of laminate, possessing Extension-Shearing Bending-Twisting coupling, necessary for optimised passive-adaptive flexible wing-box structures. The possibility of achieving a measurable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::061164c7018e41e928526ab2f57b9770
https://doi.org/10.1016/j.compstruct.2016.12.041
https://doi.org/10.1016/j.compstruct.2016.12.041
Autor:
Christos Kassapoglou, Gunther Moors, Sérgio Frascino Müller de Almeida, Clovis Augusto Eça Ferreira
Publikováno v:
CEAS Aeronautical Journal, 10(2)
A process to efficiently design composite wing boxes is presented. It uses analytical and semi-empirical equations for failure modes such as material strength, plate buckling, stiffener column buckling and stiffener flange or web crippling. Laminate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b5a4d91ef3438f246675e73f95e8f3d
http://resolver.tudelft.nl/uuid:13b722ef-0eb4-419e-82d8-73ab01dae16a
http://resolver.tudelft.nl/uuid:13b722ef-0eb4-419e-82d8-73ab01dae16a
Publikováno v:
AIAA Journal. 54:1987-2003
This paper proposes a numerical approach to estimate the dynamic behavior of a typical aeronautical aluminum box-beam structure liable to buckling. The methodology is based on a nonlinear finite element model and an experimental modal analysis proced
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b5d16d8ae63cac2d43e2e8b45d96f83
https://doi.org/10.2514/1.j054576
https://doi.org/10.2514/1.j054576
Publikováno v:
Composite Structures. 229:111409
In this work a novel modification of the well-known Whitney-Nuismer criteria is proposed with the aim of having a simple and yet accurate fracture criterion for the important problem of estimating the strength of composite laminates with circular ope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53c28358e055ba072ccd3a03210142d2
https://doi.org/10.1016/j.compstruct.2019.111409
https://doi.org/10.1016/j.compstruct.2019.111409