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Tuesday, May 5, 2020 | History

3 edition of Dynamic delamination buckling in composite laminates under impact loading found in the catalog.

Dynamic delamination buckling in composite laminates under impact loading

Dynamic delamination buckling in composite laminates under impact loading

computational simulation

  • 350 Want to read
  • 6 Currently reading

Published by National Aeronautics and Space Administration, For sale by the National Technical Information Service in [Washington, D.C.], Springfield, Va .
Written in English

    Subjects:
  • Composite materials -- Delamination.,
  • Buckling.,
  • Composite materials.,
  • Computerized simulation.,
  • Delaminating.,
  • Dynamic loads.,
  • Impact loads.

  • Edition Notes

    StatementJoseph E. Grady, Christos C. Chamis, and Robert A. Aiello ; prepared for the Second Symposium on Composite Materials, Fatigue and Fracture, sponsored by the American Society for Testing and Materials, Cincinnati, Ohio, April 26-30, 1987.
    SeriesNASA technical memorandum -- 100192.
    ContributionsChamis, C. C., Aiello, Robert A., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination12 p.
    Number of Pages12
    ID Numbers
    Open LibraryOL15419233M

    Dynamic Delamination Buckling In Composite Laminates. By Joseph E. Grady, Robert A. Aiello and Christos C. Chamis. Abstract. Procedure for mathematical modeling of dynamic delamination buckling and propagation of delamination, with plate bending elements and multipoint constraints, developed and incorporated into finite-element computer. Delamination Buckling of Fibre-Metal Laminates Under Compressive and Shear Loadings. Microscale Modelling of Fiber-Matrix Debonding of SiC/Ti Laminates under Cyclic Loading. Effect of different size multiple delaminations on compressive behavior of composite laminates.

    Research Article Optical Evaluation on Delamination Buckling of Composite Laminate with Impact Damage , 1 ch, 2 , 3 3 School of Mechanical Engineering, Tianjin Key Laboratory of Advanced Mechatronics Equipment Technology. AND DELAMINATION BUCKLING IN COMPOSITE LAMINATES. by 4 Ever J. BarberoDissertationsubmitted to the Faculty of the Virginia Polytcchnic Institute and State University in partial fulfillment ofthe requirements for the degree of Doctor of Philosophy in Engineering Mechanics APPROVED: J.N. Rcddy, rman/“ 4 7 LläbpescuéR. H. Plaut E:\,7 T.

    Given such advantages as low weight compared to strength and toughness, laminated composites are now used in a wide range of applications. Their increasing use has underlined the need to understand their principal mode of failure, delamination. This important book reviews key research in understanding and preventing delamination. The first part of the book reviews general issues such as the.   The objective of this work is to study the post buckling behavior of composite laminates, containing embedded delamination, under uniaxial compression loading. For this purpose, delamination initiation and propagation is modeled using the softening behavior of interface elements. The full layer-wise plate theory is also employed for approximating the displacement field of laminates and the Cited by:


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Dynamic delamination buckling in composite laminates under impact loading Download PDF EPUB FB2

DYNAMIC DELAMINATION BUCKLING IN COMPOSITE LAMINATES UNDER IMPACT LOADING: COMPUTATIONAL SIMULATION Joseph E. Grady, Christos C. Chamis, and Robert A.

Aiello National Aeronautics and stration Lewis Research Center Cleveland, Ohio SUMMARY A unique dynamic delamination buckling and delamination propagation analy- puter Size: KB. Get this from a library. Dynamic delamination buckling in composite laminates under impact loading: computational simulation.

[J E Grady; C C Chamis; Robert A Aiello; United States. National Aeronautics and Space Administration.]. Dynamic Delamination Buckling in Composite Laminates Under Impact Loading: Computational Simulation. A unique dynamic delamination buckling and delamination propagation analysis capability has been developed and incorporated into a finite-element computer program.

which provides a new analysis algorithm that can be used to predict Cited by: 3. In this study, the delamination is clearly overshadowed by overall buckling and the influence of delamination itself appears to be minimal.

The work of Yu () and Ortiz and Pandolfi () appear to be the most comprehensive in this area, but their main focus is in the Mode II delamination of the composite plate under high speed impact. In Author: S. Sridharan, Y. Li, S. El-Sayed. Purchase Delamination Behaviour of Composites - 1st Edition.

Print Book & E-Book. ISBNDynamic delamination buckling in composite laminates under impact loading - Computational simulation. A unique dynamic delamination buckling and delamination propagation analysis capability has been developed and incorporated into a finite element computer program.

This capability consists of the following: (1) a modification of the direct. Delamination is an inter-ply failure phenomenon induced by drilling and is a highly undesirable problem recognized as a major damage when drilling composite laminates.

Tool design has direct influence on the occurrence of delamination. Fig. shows the schematic images of delamination damage and calculation of the delamination area. Delamination not only drastically reduces assembly. Hossein et al. studied the buckling of composite laminates containing delamination under in-plane compressive loads and the delamination propagation is modeled using the softening behavior of.

The delamination buckling and growth behaviors of a cross-ply composite laminate with damage induced by low velocity impact are investigated optically using three-dimensional digital image correlation (3D-DIC) method. For the 3D deformation measurement, the 3D-DIC setup comprised of two CCD cameras was adopted.

The rectangle specimen was impacted under the impact energy of &#x;J using a Cited by: 4. In this study, critical buckling load of an impacted composite laminate is predicted, using the structural similitude method. Because of impact loading, damaged regions have formed in the laminate.

To establish similarity conditions between impacted laminates for buckling loading, the idea of sequential similitude method is introduced. Dynamic delamination in curved composite laminates under quasi-static loading. I Uyar 5,6, B Gozluklu 3,4 and D Coker 1,2.

Published under licence by IOP Publishing Ltd Journal of Physics: Conference Series, Volumeconference 1Cited by: 1. Request PDF | Delamination growth in composite laminates of variable stiffness | The production of new composite laminates with variable stiffness within the surface of plies was enabled by tow.

The destroy behavior analysis method for the composite laminated and/or delaminated plates under static loading is established by Tsai’s reduced stiffness role, and the equation is solved.

From some numerical examples, the effect of structure stiffness and delamination location upon the destroy behavior of delaminated composite laminates Author: Yuandong Liu, Haoran Chen. (b) Linear Problems of Delamination Buckling Delamination can significantly reduce the compressive strength and stiffness of the laminate.

Local delamination can be considered as a crack in the bond. Under buckling there appears a high interlaminate stress at the crack edge that leads to a Cited by: Delamination buckling growth in laminated composites using layerwise-interface element Hossein Hosseini-Toudeshkya,*, Samira Hosseinia, a numerical investigation on the buckling of composite laminates containing delamination, under in-plane compressive loads, is presented.

For this purpose, delamination propagation is modeledFile Size: 1MB. Impact loading of a composite plate - delamination analysis A numerical simulation is undertaken to assess the performance of the method for dealing with progressive debonding phenomena (no material fracture) in a laminated composite plate which is subjected to a high velocity impact at its centre (based on the experiments undertaken by Worswick.

The Navier solutions using SS-1 boundary conditions can be obtained only for laminates whose stiffnesses A 16, A 26, B 16, B 26, D 16, D 26, and A 45 are zero. Thus, the Navier solutions for the SS-1 boundary conditions can be developed for laminates with a single general orthotopic layer, symmetrically laminated plates with multiple specially orthotropiclayers, and antisymmetric cross-ply Author: Mohammad Amin Torabizadeh.

Delamination is a critical damage mode under impact loading. It is particularly insidious because it can have a large effect on residual strength, yet there may be little or no indication of damage on the surface, despite extensive internal delamination, as shown in the edge view of an impacted quasi-isotropic glass–epoxy specimen in figure 5 Cited by: LIOn Delamination of Laminated Composites (a) Fiber-Reinforced Composites Considerable technological advances in the production of high-strength fibers (graphite, boron, etc.) have led to a wide use of light high-strength composite materials (graphite­ epoxy, boron-epoxy, etc.).

It is expedient, to. Delamination damage analysis of curved composites subjected to compressive load using cohesive zone modelling. Kedward et al. [] studied radial stress distribution and determine flexural strength of composite laminates. Lekhnitskii’s equations are applicable only for pure Delamination damage analysis of curved composites subjected toFile Size: 2MB.

The influence of delamination on the progressing damage path and initial failure load in composite laminates is investigated.

Results are presented from a numerical and an experimental study of center-notched tensile-loaded coupons. The numerical study includes two approaches. The first approach considers only intralaminar (fiber breakage and Cited by: 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 of the panel subjected to a local impact and the quasi-static uniform compression of the panel within the local damage : Alexander A. Ryabov, Evgeny E.

Maslov, Dmitry Y. Strelets, Vladimir G. Slobodchikov.Delamination Analysis of Composite Laminates Wei Ding Doctor of Phiiosophy, Department of Chernical Engineering and Appüed Chemietry University of Toronto Abstract A combined theoretical and experimental study has been conducted on the delamination of fibre reinforced polymenc by: 7.