Results 21 to 30 of about 508 (224)

A fast procedure for the design of composite stiffened panels

open access: yesThe Aeronautical Journal, 2015
AbstractThis paper describes the analysis and the minimum weight optimisation of a fuselage composite stiffened panel made from carbon/epoxy material and stiffened by five omega stringers. The panel investigated inside the European project MAAXIMUS is studied using a fast tool, which relies on a semi-analytical procedure for the analysis and on genetic
VESCOVINI, RICCARDO, BISAGNI, CHIARA
openaire   +3 more sources

A post-buckling compressive failure analysis framework for composite stiffened panels considering intra-, inter-laminar damage and stiffener debonding

open access: yesResults in Physics, 2019
A post-buckling failure analysis framework was established to accurately and thoroughly capture the post-buckling deformation paths and failure processes as well as bearing capacities of composite stiffened panels under uniaxial compression.
Libin Zhao   +6 more
doaj   +1 more source

Degradation investigation in a postbuckling composite stiffened fuselage panel [PDF]

open access: yesComposite Structures, 2008
COCOMAT is a four-year project under the European Commission 6th Framework Programme that aims to exploit the large strength reserves of composite structures through a more accurate prediction of collapse. Accordingly, one of the COCOMAT work packages involves the design of test panels with a focus on investigating the progression of composite damage ...
Orifici, Adrian   +5 more
openaire   +3 more sources

Combined structural and manufacturing optimization of stiffened composite panels [PDF]

open access: yes6th Symposium on Multidisciplinary Analysis and Optimization, 1996
Manufacturing considerations have been incorporated into the design optimization of a blade-stiffened composite panel. For the manufacturing analysis, a one-dimensional resin film infusion model is developed to compute the infiltration time of the resin into a fabric preform of the panel.
Joseph Lynn Henderson   +2 more
openaire   +1 more source

Computational Analysis of Compressed Stiffened Composite Panels with Impact Damage

open access: yesAerospace, 2019
A complex modeling technique is presented in this paper for a numerical analysis of compressed stiffened composite panels with impact damage. The numerical technique is based on the LS-Dyna code application, which simulates both the dynamic deformation ...
Alexander A. Ryabov   +3 more
doaj   +1 more source

Parametric study on dynamic responses of stiffened sandwich composite bridge deck panel

open access: yesJournal of Engineering and Applied Science, 2022
Recently, the use of sandwich composites in different fields of engineering such as aerospace, marine, automobile, pipelines, bridge structure, industrial work, has attracted significant attention.
Aloka Ranjan Sahu   +3 more
doaj   +1 more source

Vibro-Acoustic Modelling of Aeronautical Panels Reinforced by Unconventional Stiffeners

open access: yesAerospace, 2022
The purpose of this work is to characterise the vibro-acoustic behaviour of rectangular flat panels reinforced by “unconventional” stiffeners. Such panels are being increasingly employed in the aircraft industry in the case of composite fuselage, so that
Giovanni Fasulo   +3 more
doaj   +1 more source

Effect of Forming Process on Compression Characteristics of Composite Hat-stiffened Panels

open access: yesCailiao gongcheng, 2018
An experiment was conducted for the composite hat-stiffened panels with different forming process types with boundary constraint, in order to study the effect of secondary bonding and co-curing on the compression stability and carrying capacity of ...
XU Rong-zhang   +2 more
doaj   +1 more source

Structural Efficiency of Stitched Rod-Stiffened Composite Panels with Stiffener Crippling [PDF]

open access: yes49th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference <br> 16th AIAA/ASME/AHS Adaptive Structures Conference<br> 10t, 2008
The structural efficiency of rod-stiffened stitched specimens is evaluated to determine their weight saving potential if the stiffeners were allowed to buckle at less than or equal to design ultimate load. Analytical and experimental results from rod-stiffened and blade-stiffened single-stiffener specimens are presented. In both cases, skin and flanges
Dawn Jegley   +2 more
openaire   +1 more source

INTERNAL CLADDING LAYER INFLUENCE ON THE DEBONDING OF HAT-STRINGER STIFFENED COMPOSITE PANELS UNDER AXIAL COMPRESSION (MT)

open access: yesJixie qiangdu, 2022
Debonding between flange and skin is the dominate failure mode of stiffened composite panels which are widely used in modern aircraft. The influence of internal cladding layer in hat stringer on the onset of debonding is investigated experimentally and ...
YUAN Fei   +5 more
doaj  

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