Results 61 to 70 of about 18,796 (217)

Optimum design of a composite outer wing subject to stiffness and strength constraints [PDF]

open access: yes, 2011
Composite materials have been more and more used in aircraft primary structures such as wing and fuselage. The aim of this thesis is to identify an effective way to optimize composite wing structure, especially the stiffened skin panels for minimum ...
Liu, Yifei
core  

Vibration characteristics of adhesive bonding repaired carbon fiber/epoxy laminate under hygrothermal condition

open access: yesJournal of Aeronautical Materials, 2020
Through theoretical derivation and finite element simulation, the vibration characteristics of composite laminate with four-edge clamped support under hygrothermal condition were studied.
JIA Baohui   +3 more
doaj   +1 more source

Ramie Fiber-Reinforced Polylactic-Acid Prepreg: Fabrication and Characterization of Unidirectional and Bidirectional Laminates

open access: yesInternational Journal of Technology, 2023
The fabrication of a natural prepreg with poly-lactic acid (PLA) matrix and ramie fiber reinforcement was engineered on a laboratory scale by impregnating the unidirectional and bidirectional ramie fiber with PLA matrix solvent on a glass die.
Tresna Priyana Soemardi   +3 more
doaj   +1 more source

The effect of laminate lay-up on the flutter speed of composite wings. [PDF]

open access: yes, 2003
This paper presents an analytical study on optimization of a laminated composite wing structure for achieving a maximum flutter speed and a minimum weight without strength penalty.
Guo, Shijun J.   +2 more
core   +1 more source

Investigation of the Mechanical Properties of Hybrid Carbon-Hemp Laminated Composites Used as Thermal Insulation for Different Industrial Applications

open access: yesAdvances in Mechanical Engineering, 2014
Carbon-hemp composite laminate provides good thermal properties. For this reason this type of material is presently being used for various applications like insulator for airplanes, spaceships, nuclear reactors, and so forth.
M. L. Scutaru, M. Baba
doaj   +1 more source

The Effect of Alumina Nanoparticles Impregnated Kevlar on Ballistic Resistance of Aluminum Alloy 7075 Hybrid Laminate Composite for Armor Application

open access: yesInternational Journal of Technology
Military equipment development, especially means of transportation, currently revolves around material selection, which includes hybrid laminate composite as a prominent material choice due to its strength-to-weight ratio.
Salsabila Syifa   +3 more
doaj   +1 more source

Design selection methodology for composite structures [PDF]

open access: yes, 2008
This paper presents a methodology to help designers select a shortlist or optimum design of composite structure from a large number of alternatives, taking into account conflicting design objectives or constraints (e.g. weight and cost).
Monroy, Aceves C.   +2 more
core   +1 more source

THE INFLUENCE OF FIBER ORIENTATION ON ENGINEERING CONSTANTS OF LAMINATED COMPOSITES [PDF]

open access: yesAnnals: Series on engineering sciences (Academy of Romanian Scientists), 2015
A laminated composite is generally formed by stacking unidirectional laminas, with different fiber orientation angles, in the direction of the laminate thickness, in order to satisfy the design requirements.
Iuliana DUPIR (HUDIȘTEANU)   +1 more
doaj  

EXPLORING STRUCTURAL DESIGN OF THE FRANCIS HYDRO-TURBINE BLADES USING COMPOSITE MATERIALS

open access: yesFacta Universitatis. Series: Mechanical Engineering, 2020
Composite materials are increasingly exploited in industry especially replacing metallic structures due to their strength/weight ratio. Amongst the notable applications, for which composite materials have not challenged metals yet are hydro-turbines ...
Iakovos Mastrogiannakis   +1 more
doaj   +1 more source

Effect of Silica Powder Addition on Mechanical Properties of Polymer Laminate Composite [PDF]

open access: yesEngineering and Technology Journal, 2017
In this study laminate composites were prepared, one was reinforced with three layers of kevlar fibers at (Vf = 17.89%) and the second was reinforced with hybrid laminate with sequence of layers (Kevlar-Glass-kevlar (KGK)) at (Vf = 15.3%), samples were ...
F.A. Hashim, M.S. Hamza, R.R. Abdullah
doaj   +1 more source

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