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Monday, April 27, 2020 | History

3 edition of The impact response of carbon/epoxy laminates found in the catalog.

The impact response of carbon/epoxy laminates

The impact response of carbon/epoxy laminates

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  • 16 Currently reading

Published by National Aeronautics and Space Administration, Marshall Space Flight Center, National Technical Information Service, distributor in [Huntsville, Ala.], Springfield, VA .
Written in English

    Subjects:
  • Epoxy matrix composites.,
  • Laminates.,
  • Impact tests.,
  • Dynamic tests.

  • Edition Notes

    Other titlesImpact response of carbon epoxy laminates.
    StatementA.T. Nettles and A.J. Hodge.
    SeriesNASA/TM -- 206317., NASA technical memorandum -- 206317.
    ContributionsHodge, A. J., George C. Marshall Space Flight Center., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL15548563M

    The application of polymeric composites has been an evolutionary process, with increased use as materials and processing technology matured and program needs dictated their use. Glass-reinforced composites, in the form of thin face sheet honeycomb sandwich constructions, have been in general use for. Ballistic impact response of two different material systems, IM7/ Carbon Fibre-Reinforced Polymer (CFRP) and S2-glass/phenolic resin Glass Fibre- Reinforced Polymer (GFRP) laminates provides the physical background and experimental verifications for the present model. Electrical Resistance Change of Carbon/Epoxy Composite Laminates under Cyclic Loading under Damage Initiation Limit OPEN ACCESS OJCM 23 until cycles, the experimental results included the ef- fect of the temperature change and the effects were notFile Size: 1MB.


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The impact response of carbon/epoxy laminates Download PDF EPUB FB2

Impact response of carbon/epoxy laminates (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: A T Nettles; A J Hodge; George C.

Marshall Space Flight Center. Get this from a library. The effects of tensile preloads on the impact response of carbon/epoxy laminates. [A T Nettles; Vince Daniel; Caleb Branscomb; United States.

National Aeronautics and Space Administration.]. THE IMPACT RESPONSE OF CARBON/EPOXY LAMINATES (MSFC Center Director's Discretionary Fund Final Report, Project No. ) 1. INTRODUCTION The term "composite materials" can be used to describe a host of different material forms used for a vast variety of final applications.

The one common denominator for all of these materials is that two. Park (4) examined the effects of tensile preloads on the damage of many different material types The impact response of carbon/epoxy laminates book carbon/epoxy The impact response of carbon/epoxy laminates book.

The assertion is made that the stresses due to the preloading and the impact event can be superimposed to obtain the stress state within the test coupon.

An important concept is that of a "failure threshold curve" (5). The panels are of two materials, carbon-epoxy laminates IM7/ and IM7/ Two configurations are taken into account, each of them showing different size and impact energy (11 and 20 J).

The panel thickness is 3 mm and the panel stacking sequence [(− 45, + 45, 90, 0) 3] s. The benchmark was already explained in detail elsewhere [6]. and a carbon/epoxy composite laminates. Their results show that the ply orientation in unidirectional carbon/ epoxy and aluminum laminates has particularly importance for their impact resistance.

Yu et al. [13] studied the effect of the properties of aluminum alloy on the low velocity impact response of CARALL and showed that the impactCited by: Therefore, the aim of the present work is to study the low velocity impact and the response at high strain rates of carbon/epoxy laminates, after immersion The impact response of carbon/epoxy laminates book hydrochloric acid (HCl) and sodium.

The LVI response of carbon/epoxy laminates was carried out by The impact response of carbon/epoxy laminates book and the results matched with the experimental results.

Numerical analysis with. Impact response and damage tolerance characteristics of glass–carbon/epoxy hybrid composite plates. J Harding, Y.L LiDetermination of interlaminar shear strength for glass/epoxy and carbon/epoxy laminates at impact rates of strain.

Composites Science and Technology, 45 (), pp. Cited by: Hybrid titanium/carbon-epoxy laminates, characterized by constant total thickness, but with various thicknesses of individual layers, loaded by low-velocity impact demonstrate that increasing the total thickness of the metal part, even if the metal part is divided into a higher number of layers, contributes to a higher energy absorption.

The paper deals with the analysis for damage in carbon/epoxy laminates subjected to low velocity impact. The impact response of carbon/epoxy laminates book The study is related to application of carbon fiber composites in airframe structures. In this paper, FEM 3D analysis for modeling and predicting the damage in carbon-epoxy laminate subjected to low velocity impact were performed.

A wealth of knowledge has been published on dynamic impact response of composite materials and structures. Yet, with continually emerging materials and processes, there is a lack of systematic structure-property-performance relationships that provide guidelines on dynamic impact behavior The impact response of carbon/epoxy laminates book by: Therefore, the aim of this work is study the low velocity impact response of Kevlar/epoxy laminates and carbon/epoxy laminates, after immersion into hydrochloric acid (HCl) and sodium hydroxide (NaOH).

The aggressive solutions affect significantly the impact strength, but their effects are strongly dependent of the by:   The response of Carbon/epoxy composites under high velocity impact was investigated experimentally.

The strain rate dependent behavior of T Carbon/epoxy matrix composite in tension is studied experimentally by split Hopkinson bar technique. Dynamic stress-strain plot was obtained and compared with the quasi-static tensile test : Gui Ping Zhao, Zheng Hao Wang, Jian Xin Zhang, Chong Du Cho.

In this work simulations of high velocity impacts of ice spheres on carbon/epoxy laminates are accomplished. The Drucker-Prager model has been chosen to describe the mechanical behavior of the ice under high velocity impact conditions. Results have been validated by means of experimental tests performed in a wide range of impact velocities.

The Cited by: 1. @article{osti_, title = {Monitoring fatigue damage in carbon fiber composites using an acoustic impact technique}, author = {Haque, A and Raju, P K}, abstractNote = {The acoustic impact technique (AIT) of nondestructive testing (NDT) has been used to identify the damage that results from the compressive and tension-compression cycle loading around a circular notch of.

The influence of hygrothermal aging on high-velocity impact damage of carbon fiber-reinforced polymer (CFRP) laminates is investigated. Composite laminate specimens were preconditioned in water at 70 °C. The laminates were subsequently impacted by flat- sphere- and cone- ended projectiles with velocities of 45, 68, and 86 m/s.

The incident and residual velocities were Cited by: 1. Under the lightest (and slowest) impact condition (5 J) the employed epoxy resin exerted only a moderate effect on the dynamic response of both classes of laminates.

On the other hand, under the heaviest (and fastest) shock condition (50 J), the rubber-toughened resin added a very positive effect on the performance of the fabric array.

The fracture behavior of carbon/epoxy laminates containing part through-the-thickness fiber breakage Miscellaneous Tian Zhengfei. The objectives of this study were to determine the tensile-fracture behavior of laminates when part through-the-thickness fiber breakage is present, and to develop a procedure for predicting laminate tensile residual.

‘This is one of the first books totally devoted to impact on composite structures. Composites have become of increasing importance in structures since the s, and today many structural elements are manufactured from them, particularly in the aerospace industries this is an excellent book for any advanced student or researcher.’Cited by: DAMAGE CHARACTERIZATION OF CARBON/EPOXY LAMINATES USING COMPRESSION-AFTER-IMPACT (CAI) AND ULTRASONIC NDE A.

Subramanian1, V. Dayal2, and D. Barnard1 1CNDE, Iowa State University, Ames, IA 2Department of Aerospace Engineering, Iowa State University, Ames, IA ABSTRACT. A study of impact damage morphology in unidirectional carbon/epoxy Author: Ajith Subramanian, Vinay Dayal, Daniel J.

Barnard. Carbon fibres exhibit generally superior performance in tensile, compressive and flexural properties as well as fatigue resistance.

Also excellent interlaminar and in plane shear strengths. Best tensile strength, flexural modulus, heat distortion temperature and linear expansion compared with other epoxy laminates. Disadvantages: Very expensive.

THICK CARBON/EPOXY LAMINATES M. R.L. Gower, R. Shaw and W.R. Broughton National Physical Laboratory Hampton Road, Teddington, Middlesex, TW11 0LW, United Kingdom @ SUMMARY This paper presents research on the effect of cure cycle on material properties of thick (~20 mm) unidirectional carbon/epoxy Size: KB.

There are many studies in the literature [2–7] on the impact response of composite materials and structures. A few of them are as follows: Morais et al. [8] studied the effect of laminate thickness on the resistance of carbon, glass, and aramid fabric composites to repeated low-energy by: 1. Energy absorption and high impact damage resistance/tolerance of composites materials have become one of important criteria for textile composite utilizaton in many technical textile industries.

Textile composites are known for its strength to weight ratio. Technical application such as protection helmet need a high impact damage resistance/tolerance Cited by: 8.

thermoset plastic (epoxy) (CFRP) laminates were manufactured. One panel was made from unidirectional (UD) preimpreginated (prepreg) carbon fibre, while the other was a twill weave carbon fibre prepreg.

Oven curing of the laminates under vacuum was used to ensure that voids were present. Samples of size 15 x 7 x 5 mm were cutFile Size: 1MB. Full text of "A Comparison of Quasi-Static Indentation and Drop-Weight Impact Testing on Carbon-Epoxy Laminates" See other formats.

With the advancement of testing tools, the ability to characterize mechanical properties of fiber reinforced polymer (FRP) composites under extreme loading scenarios has allowed designers to use these materials in high-level applications more confidently.

Conventionally, impact characterization of composite materials is studied via nondestructive techniques such as Cited by: 5.

Low-velocity impact response of carbon/epoxy laminates subjected to cold–dry and cold–moist conditioning Mahesh V. Hosur, Kunal Jain, Farhan Chowdhury, Shaik Jeelani, M.R. Bhat, and C.R.L. Murthy Composite Structures,Vol Number 2, Page Cited by:   This book will be particularly relevant to professional engineers, graduate students and researchers interested in composite materials.

Sample Chapter(s) Chapter 1: Micromechanical Modelling of Textile Composites (2, KB) Contents: Micromechanical Modelling of Textile Composites; Mechanical Response and Failure of 2D Woven Composites.

Effect of PVDF nanofibers on the fracture behavior of composite laminates for high-speed woodworking machines M Fotouhi, H Saghafi, T Brugo, G Minak, C Fragassa, A Zucchelli, and M Ahmadi Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 1, Cited by:   Determination of interlaminar shear strength for glass/epoxy and carbon/epoxy laminates at impact rates of strain.

Standard test method for in-plane shear response of polymer matrix composite materials by tensile test of a ±45° laminate. Annual Book of ASTM Standards, West Conshohocken, PA, United State,p. Cited by: 8. This monograph presents recent research findings on fracture properties and behavior of the composites, and their damage and cracking process under both quasi-static and impact loading conditions.

Theoretical treatment, experimental investigation and numerical simulation aspects of the mechanics of composites, including sandwich structures are included. ties by adjusting their values so that the predicted material response matches experimental data. Once the material properties are obtained, the simulation predictions are compared to a broad set of Carbon/Epoxy laminates with di erent laminate stacking sequences.

The high velocity impact performance in hybrid woven carbon and S2 and E glass fabric laminates manufactured by resin transfer molding (RTM) was studied. Specimens with different thicknesses and glass-fiber content were tested against mm spherical projectiles with impact velocities ranging from to m/s to obtain the ballistic by: 8.

Consequently, the mechancis of impact resistance are also different for these materials. Carbon-epoxy and boron-epoxy composites can exhibit brittle modes of fracture. In studies to improve the impact resistance of carbon-epoxy materials, traditional impact tests provided very little understanding of the problems by: 2.

In this paper, an analytical model, which based on energy balance, is built to study the process of high velocity impacts on woven Kevlar composite laminates by a cylindrical projectile.

Four different mechanisms, such as laminate crushing, linear momentum transfer and tensile fiber failure, and shear plugging, is absorbed by the laminate while : Chen Fangyu, Zhou Li, Tang Yihao, Zhou Xiaoming.

A thermal model is developed for the response of carbon-epoxy composite laminates in fire environments. The model is based on a porous media description that includes the effects of gas transport within the laminate along with swelling. Model comparisons are conducted against the data from Quintiere et al.

Petrucci et al. [8] examined the impact and flexural post-impact behavior of ternary hybrid composites based on epoxy resin reinforced with basalt, flex, hemp and glass fibers. Dorigato and Pegoretti [9] investigated the hybridization effect on the flexural and impact properties of carbon/basalt fiber reinforced composite by: 1.

The deformation and failure response of composite sandwich beams and panels under low velocity impact was reviewed and discussed. Sandwich facesheet materials discussed are unidirectional and woven Cited by: 7. The Basics of Using Carbon Fiber Laminates Share Flipboard Email Print Yahya S./Flickr/CC Pdf Science.

Chemistry Chemistry In Everyday Life Basics Chemical Laws Molecules The carbon fiber film has great UV resistance and does provide some impact-resistance. It's used in everything from cell phones to sports cars.The problem of impact loading of fiber composite structures is important because of the possibility of accidental damage occuring during service.

The present paper is a review of a combined experimental and analytical study of transverse impact loading of carbon/epoxy Cited by: 2.The impact ebook this default is the subject of much attention, as evidenced by some studies on this subject average 6% per unit volume of porosity for carbon / epoxy laminates [17], [19].

The predicted mechanical response of composites made ofFile Size: KB.