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Journal articles on the topic 'Notched composite'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

Wang, Ze Xing, Jin Hua Jiang, and Nan Liang Chen. "Notch Size and Loading Rate on the Tensile Behavior of Woven Fabric Reinforced Flexible Composite with Symmetrical Double Edge Notch." Applied Mechanics and Materials 341-342 (July 2013): 49–53. http://dx.doi.org/10.4028/www.scientific.net/amm.341-342.49.

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In order to investigate the effects of lager notch ratio (2α/W) and loading rate on the tensile behavior of woven fabric reinforced flexible composites, in this study, fracture mechanism and tensile strength of finite woven fabric-reinforced flexible composite materials with a through-the-thickness symmetrical located double edge notches is experimentally investigated, and the effects of notch size, loading rate on the tensile properties of notched specimen are analyzed. The results show that the woven fabric reinforced flexible composites exhibit notch sensitivity and loading rate dependent.

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2

De Giorgi, Marta, Riccardo Nobile, and Fania Palano. "kf Evaluation in GFRP Composites by Thermography." Applied Sciences 11, no. 11 (2021): 5200. http://dx.doi.org/10.3390/app11115200.

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Since the presence of a notch in a mechanical component causes a reduction in the fatigue strength, it is important to know the kf value for a given notch geometry and material. This parameter is fundamental in the fatigue design of aeronautical components that are mainly made of composites. kf is available in the literature for numerous types of notch but only for traditional materials such as metals. This paper presents a new practice, based on thermographic data, for the determination of the fatigue notch coefficient kf in composite notched specimens. The innovative aspect of this study is

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3

Kawai, M., and A. Kasuga. "Anisotropic size effect law for notched strength of unidirectional carbon/epoxy laminates – Part 2: Comparison with experiment." Journal of Composite Materials 51, no. 5 (2016): 603–21. http://dx.doi.org/10.1177/0021998316649779.

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The multiaxial quasi-brittle failure criterion for notched orthotropic composites that was formulated in the first part of this study is evaluated on the basis of the off-axis notched strength of a unidirectional carbon/epoxy composite. Static tension tests are first carried out on center circular hole specimens of different hole diameters and fiber orientations to examine the notch size effect as well as the fiber orientation effect on the off-axis notched strength of the unidirectional composite. Experimental results show that the tensile strength in the fiber direction is more notch-sensiti

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4

Pham, D. C., X. S. Sun, V. B. C. Tan, B. Chen, and T. E. Tay. "Progressive Failure Analysis of Scaled Double-Notched Carbon/Epoxy Composite Laminates." International Journal of Damage Mechanics 21, no. 8 (2011): 1154–85. http://dx.doi.org/10.1177/1056789511430415.

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This article presents progressive failure analysis of double-notched carbon/epoxy composite laminates with different scales. A numerical analysis strategy based on material property degradation method (MPDM) and cohesive elements (CE) is developed to model progressive failure of scaled double-notched composite laminates, where the material property degradation method is used to model the intralaminar failure and the cohesive elements are employed to account for the delamination at the interfaces. Different failure theories are considered in the material property degradation method–cohesive ele

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Kawai, M. "Anisotropic size effect law for notched strength of unidirectional carbon/epoxy laminates – Part 1: Formulation." Journal of Composite Materials 51, no. 5 (2016): 593–602. http://dx.doi.org/10.1177/0021998316651481.

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A multiaxial quasi-brittle failure criterion for notched orthotropic composites is developed with an emphasis on establishment of an analytical formula to predict their anisotropic notched strength for any notch size under any multiaxial proportional loading. It is formulated by replacing the principal unnotched strengths with the principal notched strengths in the framework of the Tsai–Hill static failure criterion for orthotropic composites. The effects of notch size and specimen width on the principal notched strengths are described by means of the Suo-Ho-Gong model that can consider notch

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6

Herráez, M., A. Fernández, C. S. Lopes, and C. González. "Strength and toughness of structural fibres for composite material reinforcement." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 374, no. 2071 (2016): 20150274. http://dx.doi.org/10.1098/rsta.2015.0274.

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The characterization of the strength and fracture toughness of three common structural fibres, E-glass, AS4 carbon and Kevlar KM2, is presented in this work. The notched specimens were prepared by means of selective carving of individual fibres by means of the focused ion beam. A straight-fronted edge notch was introduced in a plane perpendicular to the fibre axis, with the relative notch depth being a 0 / D ≈0.1 and the notch radius at the tip approximately 50 nm. The selection of the appropriate beam current during milling operations was performed to avoid to as much as possible any microstr

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7

Kamiya, Shoji, and Hideki Sekine. "Damage Mechanism and Apparent Fracture Strength of Notched Fiber-Reinforced Composite Laminates." Key Engineering Materials 430 (March 2010): 53–67. http://dx.doi.org/10.4028/www.scientific.net/kem.430.53.

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Apparent fracture strength of notched fiber-reinforced composite laminates depends on the notch tip radius even if it is evaluated in terms of the local parameters such as the stresses at a notch tip or the stress intensity factors. Although numbers of phenomenological explanations have been made, this phenomenon has not yet been physically clear enough. In order to elucidate its key mechanism, our interest is here focused on the interlaminar crack extension from a notch tip in cross-ply laminates subjected to mode-I loading. We find a stochastically expected upper bound of interlaminar crack

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8

Patel, Mitesh, Stephen Daynes, and Chun H. Wang. "The Influence of Orthotropy and Taper Angle on the Compressive Strength of Composite Laminates with Scarfed Holes." Advanced Materials Research 891-892 (March 2014): 178–84. http://dx.doi.org/10.4028/www.scientific.net/amr.891-892.178.

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The residual strengths of laminated composites containing notches or holes depend on the characteristic dimension of the notches as well as the laminate properties. This paper presents an experimental and computational investigation of the effect of orthotropy as well as scarf notch angles on the compressive strength of composite laminates made of seven different stacking sequences with the number of plies ranging between 20 and 24. Specimens containing scarfed holes of different scarf angles (6° and 10°) and straight holes of two different diameters (3.175mm and 6.35mm) were tested for compar

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9

Duva, J. M., E. J. Lang, F. Mirzadeh, and C. T. Herakovich. "Probabilistic Perspective on the Failure of Composite Laminae." Applied Mechanics Reviews 43, no. 5S (1990): S288—S293. http://dx.doi.org/10.1115/1.3120830.

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A probabilistic approach is presented for predicting the applied stress at failure for notched and unnotched unidirectional brittle matrix fibrous composites. It is assumed that failure is caused by the transverse normal stress alone. The mean value of the applied stress at failure can be calculated for any test coupon once the distribution of the transverse normal stress is known. Results are presented for axial and transverse tensile loading of notched coupons and transverse tensile loading of unnotched coupons. The widely observed linear ln–ln relationship between applied stress at failure

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10

Liang, Li, Pu Rong Jia, and Gui Qiong Jiao. "Progressive Failure Study of Discrete-Source Damage in Stiffened Composite Panels." Advanced Materials Research 314-316 (August 2011): 963–67. http://dx.doi.org/10.4028/www.scientific.net/amr.314-316.963.

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In this paper experimental and FEA methods were used to study the damage propagation and failure properties of stiffened composite panels with discrete-source damage. The influence of discrete-source damage on residual strength of the composite panel was also investigated. The research results indicated that notched composite panel was suitable to simulate the damage property of stiffened composite panel with discrete-source damage. It has showed that there is high strain concentration at the notch end. And break-through of the stringer can make the load path changed. Based on different failur

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11

Mihalic, Matthias, Lukas Sobczak, Claudia Pretschuh, and Christoph Unterweger. "Increasing the Impact Toughness of Cellulose Fiber Reinforced Polypropylene Composites—Influence of Different Impact Modifiers and Production Scales." Journal of Composites Science 3, no. 3 (2019): 82. http://dx.doi.org/10.3390/jcs3030082.

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While cellulose fiber reinforced polypropylene (PP) composites typically offer good stiffness and strength in combination with ecological benefits and a high potential for lightweight construction, they often require measures taken to improve their impact performance. In this work, the influence of different types of impact modifier on the mechanical performance of a PP–cellulose composite was systematically investigated, with a particular focus on the improvement of the notched impact strength and the accompanying loss of stiffness. Among the tested impact modifiers, ethylene-octene copolymer

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12

Sebaey, TA, and Ahmed Wagih. "Flexural properties of notched carbon–aramid hybrid composite laminates." Journal of Composite Materials 53, no. 28-30 (2019): 4137–48. http://dx.doi.org/10.1177/0021998319855773.

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Hybrid composite laminates are currently receiving researchers’ attention due to their specific advantages in designing laminates with improved specific strength and stiffness. One of the main disadvantages of polymeric laminated composites is their high sensitivity to notches, which cannot be avoided in design. This paper presents a comparison between two common hybridization techniques, namely sandwich and intra-ply hybridization. The study adopts experimental observations to investigate the influence of hybridization method on the flexural properties of notched carbon–aramid hybrid laminate

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13

AFAGHI-KHATIBI, Akbar, and Yiu-Wing MAI. "RESIDUAL STRENGTH OF NOTCHED COMPOSITE LAMINATES." Journal of the Society of Materials Science, Japan 48, no. 9Appendix (1999): 133–42. http://dx.doi.org/10.2472/jsms.48.9appendix_133.

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14

JEN, M., and J. HSU. "Residual strength in notched composite materials." International Journal of Fatigue 12, no. 4 (1990): 267–74. http://dx.doi.org/10.1016/0142-1123(90)90454-m.

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15

Wetherhold, Robert C., and Mohamed A. Mahmoud. "Tensile strength of notched composite materials." Materials Science and Engineering 79, no. 1 (1986): 55–65. http://dx.doi.org/10.1016/0025-5416(86)90387-3.

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16

Liang, Ji-Zhao, and Feng-Jiao Li. "Impact fracture toughness and morphology of polypropylene/Mg(OH)2 composites." Journal of Polymer Engineering 33, no. 8 (2013): 721–25. http://dx.doi.org/10.1515/polyeng-2013-0179.

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Abstract Magnesium hydroxide [Mg(OH)2] with high flame retardant efficiency filled polypropylene (PP) composites were prepared using a twin-screw extruder. The impact fracture behavior of the composites was measured at room temperature. It was found that the toughening effect of the filler content on the PP resin was significant. The V-notched Izod impact strength of the PP/Mg(OH)2 composites showed a nonlinear increase with increase in filler weight fraction (ϕf), as ϕf was <15%, and then it decreased slightly; When ϕf was <15%, the V-notched Charpy impact strength of the PP/Mg(OH)2 com

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17

Arteiro, A., Giuseppe Catalanotti, J. Xavier, and P. P. Camanho. "A Finite Fracture Mechanics Model for the Prediction of the Notched Response and Large Damage Capability of Composite Laminates." Key Engineering Materials 627 (September 2014): 13–16. http://dx.doi.org/10.4028/www.scientific.net/kem.627.13.

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A new model based on Finite Fracture Mechanics (FFMs) has been proposed to predict the open-hole tensile strength of composite laminates [1]. Failure is predicted when bothstress-based and energy-based criteria are satisfied. This model is based on an analytical solution, and no empirical adjusting parameters are required, but only two material properties: the unnotched strength and the fracture toughness. In the present work, an extension of the proposed FFMs model to predict the notched response of composite laminates with notch geometries other than a circular opening [2] is presented and a

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18

Delale, F. "Fracture Analysis of Notched Composites." Journal of Engineering Materials and Technology 109, no. 1 (1987): 27–35. http://dx.doi.org/10.1115/1.3225928.

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In this study the problem of part-through cracks emanating from a central notch in a composite laminate is considered. The composite laminate is modeled as an orthotropic plate and along the branches, it is assumed that the stresses are carried by the fibers only. The stresses along the uncracked portions are assumed to be proportional to the crack opening displacement at that point. After formulating the branched crack problem, the model is applied to a (±45 deg)2s composite laminate. The stress concentration factors for the fibers are computed for various values of the spring constant K. Sam

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19

Kamala Kannan, V., A. Rajadurai, and B. Nageswara Rao. "Residual strength of laminated composites after impact." Journal of Composite Materials 45, no. 9 (2010): 1031–43. http://dx.doi.org/10.1177/0021998310378904.

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This article deals with the residual strength assessment on completely as well as partially penetrated laminated composites due to impact loads by idealizing the damage locations as holes and cracks. Modifications are made in the inherent flaw model (IFM) of Waddoups, Eisenman, and Kaminski (known as the WEK model) to correlate the fracture data of laminated composites. For velocities above complete penetration, the residual strength is identical to the static strength of the laminated composite with a hole having the same diameter as the impacting particle. For this case, the inherent flaw le

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20

Konečný, Petr, Václav Veselý, Petr Lehner, Daniel Pieszka, and Libor Žídek. "Investigation of Selected Physical Parameters of Cementitious Composite during Sequential Fracture Test." Advanced Materials Research 969 (June 2014): 228–33. http://dx.doi.org/10.4028/www.scientific.net/amr.969.228.

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The paper is focusing on the investigation of the effective crack length obtained from bending test on concrete notched beams with the complementary measurements of ultrasound passing time through the tested concrete specimen. The ultrasound passing time measurements are performed on several stages of the fracture process along the specimen ligament for each tested notched beam. Gained results of the time of ultrasound pulse needed to pass through specimens' failure zone, i.e. its dependence on the crack length or opening, provide information which may help to identify the process of crack for

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21

Thai, Minh Van, Sylvain Ménard, Sidi Mohammed Elachachi, and Philippe Galimard. "Performance of Notched Connectors for CLT-Concrete Composite Floors." Buildings 10, no. 7 (2020): 122. http://dx.doi.org/10.3390/buildings10070122.

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CLT-concrete composite floor systems are a solution for timber buildings with a long-span floor. It yields a reduction of carbon footprint and even eco-friendly structure at the end of its service life. This study will evaluate the structural performance of notched connectors in the CLT-concrete composite floor, comprised of the serviceability stiffness, maximum load, and behavior at failure. The parameters of the test plan are the loaded edge length, the notch depth, the concrete thickness, and the screw length. Other secondary variables are also assessed, such as different loading sequences,

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22

Dassios, Konstantinos G., and Costas Galiotis. "Direct measurement of fiber bridging in notched glass-ceramic-matrix composites." Journal of Materials Research 21, no. 5 (2006): 1150–60. http://dx.doi.org/10.1557/jmr.2006.0132.

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A novel, high-resolution remote Raman microscope was used for the direct in situ assessment of deformation on bridging fibers in a double-edge-notched SiC-Nicalon reinforced ceramic-glass matrix composite at various stages of monotonic tensile loading. The effect of notch length on the bridging strain profiles obtained by individually probing a large number of fibers across the bridged ligament of the composite was investigated. Bridging strain measurements in the microscale are used to identify the role and sequence of the failure micromechanisms developing within the bridging zone and are co

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23

Reis, Paulo N. B., José A. Martins Ferreira, Fernando Antunes, and José Domingos M. Costa. "Fatigue Notch Sensibility of Thermoplastic Glass Fibre Composites." Materials Science Forum 514-516 (May 2006): 653–56. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.653.

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This paper is concerned with a notch sensibility study of a thermoplastic composite produced from a bi-directional woven E-glass fibres and polypropylene. Experimental tests were performed in three points bending using notched and unotched specimens of polypropylene glass fibres reinforced laminates to evaluate flexural properties and fatigue behaviour. Fatigue results were plotted as the stress range against the number of cycles to failure. The fatigue damage was measured in terms of the stiffness loss. The testes carried out using notched specimens present lower values of both static and fat

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24

Ochiai, Shojiro, Yuushi Sakai, K. Sato, et al. "Tensile and Bending Behavior of Melt Growth Al₂O₃/YAG Composite at Ultra High Temperatures (1773-2023K)." Materials Science Forum 475-479 (January 2005): 1091–96. http://dx.doi.org/10.4028/www.scientific.net/msf.475-479.1091.

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The deformation and fracture behavior at 1773-2023K of the unidirectionally solidified eutectic Al2O3/YAG (Yttrium-Aluminum Garnet with the composition of Y3Al5O13) ceramic composite was investigated. The stress-stain curve and strength of unnotched and notched specimens, measured by bending and tensile tests, showed that (a) both unnotched and notched specimens fractured in a brittle manner at low temperatures and at high displacement speeds, but in a ductile manner at high temperatures and at low displacement speeds, and (b) the notched strength increased, reaching maximum, and decreased wit

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25

Vaidya, Rajesh S., and C. T. Sun. "Fracture Criterion for Notched Thin Composite Laminates." AIAA Journal 35, no. 2 (1997): 311–16. http://dx.doi.org/10.2514/2.93.

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26

Waas, Anthony M., Ahn Junghyun, and Amir R. Khamseh. "Compressive failure of notched uniply composite laminates." Composites Part B: Engineering 29, no. 1 (1998): 75–80. http://dx.doi.org/10.1016/s1359-8368(97)00012-7.

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27

Kim, Sung-Joon, and In-Hee Hwang. "Residual strength analysis for notched composite laminates." Journal of the Korean Society for Aviation and Aeronautics 20, no. 1 (2012): 93–101. http://dx.doi.org/10.12985/ksaa.2012.20.1.093.

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28

Vaidya, Rajesh S., and C. T. Sun. "Fracture criterion for notched thin composite laminates." AIAA Journal 35 (January 1997): 311–16. http://dx.doi.org/10.2514/3.13503.

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29

Gutkowski, Richard M., Kevin Brown, Abdalla Shigidi, and Julius Natterer. "Investigation of Notched Composite Wood–Concrete Connections." Journal of Structural Engineering 130, no. 10 (2004): 1553–61. http://dx.doi.org/10.1061/(asce)0733-9445(2004)130:10(1553).

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30

Shen, G., G. Glinka, and A. Plumtree. "FATIGUE LIFE PREDICTION OF NOTCHED COMPOSITE COMPONENTS." Fatigue & Fracture of Engineering Materials and Structures 17, no. 1 (1994): 77–91. http://dx.doi.org/10.1111/j.1460-2695.1994.tb00774.x.

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31

Weixing, Yao. "On the notched strength of composite laminates." Composites Science and Technology 45, no. 2 (1992): 105–10. http://dx.doi.org/10.1016/0266-3538(92)90032-x.

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32

Lin, Lihong, and James L. Drummond. "Cyclic loading of notched dental composite specimens." Dental Materials 26, no. 3 (2010): 207–14. http://dx.doi.org/10.1016/j.dental.2009.10.002.

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33

Cheeseman, Bryan A., Michael H. Santare, and Brendan J. O'Toole. "Flexural failure of notched curved composite beams." Engineering Fracture Mechanics 54, no. 4 (1996): 479–98. http://dx.doi.org/10.1016/0013-7944(95)00226-x.

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34

Büyükkaya, Kenan, and Faruk Güner. "Determination of Static Fracture Toughness of Nettle Fibre (Urtica Dioica)/Polymethyl-methacrylate Composites Using Different Fracture Methods." Mechanics 26, no. 2 (2020): 95–102. http://dx.doi.org/10.5755/j01.mech.26.2.23308.

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In this study, the breaking behaviour of polymethylmethacrylate reinforced with nettle fibre was investigated experimentally. Single edge notched bending (SENB) and compact test(CT) specimens were produced to include notches in various ratios. The Mode I fracture behaviour of samples were determined utilizing static frac-ture toughness experiments such as the Three Point Bend-ing (TPB) and Compact Tensile tests. The fracture tough-ness (KIC) was investigated using the TPB Test (Compli-ance and Initial notch method), and Compact Tension test. The bending module and bending stresses were also de

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35

Hu, Junfeng, Xutong Zhang, Zhou Chen, Wenkang Guo, Hang Li, and Xi Deng. "Experimental and Numerical Research on Open-Hole Strength and Damage Mechanism of Regularly Arrayed Short Fiber Reinforced Polymer Composite." Polymers 12, no. 7 (2020): 1622. http://dx.doi.org/10.3390/polym12071622.

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Laminates with unidirectionally arrayed chopped strands (UACS) are one of the advanced short fiber reinforced polymer composites (SFRP) with significant application prospect, which greatly improves mechanical properties compared to the traditional SFRP, meanwhile ensuring excellent flowability. In practice, composite laminate with an open hole is one of the typical connective components, and it is necessary to clarify the allowable load and damage tolerance performance of notched structures. In the present study, UACS laminates were fabricated using the continuous carbon fiber reinforced polym

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36

Zhao, Zhenqiang, Haoyuan Dang, Jun Xing, et al. "Progressive Failure Simulation of Notched Tensile Specimen for Triaxially-Braided Composites." Materials 12, no. 5 (2019): 833. http://dx.doi.org/10.3390/ma12050833.

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The mechanical characterization of textile composites is a challenging task, due to their nonuniform deformation and complicated failure phenomena. This article introduces a three-dimensional mesoscale finite element model to investigate the progressive damage behavior of a notched single-layer triaxially-braided composite subjected to axial tension. The damage initiation and propagation in fiber bundles are simulated using three-dimensional failure criteria and damage evolution law. A traction–separation law has been applied to predict the interfacial damage of fiber bundles. The proposed mod

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37

Ahmad, Hilton, Andrew D. Crocombe, and Paul A. Smith. "Strength Prediction of Notched Woven Composite Plates Using a Cohesive Zone Approach." Advanced Materials Research 845 (December 2013): 199–203. http://dx.doi.org/10.4028/www.scientific.net/amr.845.199.

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The present paper is concerned with modelling damage and fracture in notched woven fabric composites. Previous experimental work has shown that damage at a notch in a variety of GFRP and CFRP composites based on woven fabric reinforcement comprises matrix damage and fibre tow fracture along the plane of maximum stress. It is these experimental observations that inform the failure modelling developed here, in which a cohesive zone approach is used within a 2-D finite element framework. The cohesive zone parameters are based on previously reported experimental measurements for the strength and t

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38

Erdem, Serkan, Mustafa Gur, and Mete Onur Kaman. "Nonlinear buckling behavior of hybrid composites with different notch types." Materials Testing 63, no. 9 (2021): 797–804. http://dx.doi.org/10.1515/mt-2021-0001.

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Abstract In this study, the effect of change of notch type on non-linear buckling behavior in composite plates was investigated experimentally and numerically. The composite plate is produced by applying the vacuum infusion method using carbon and aramid hybrid woven fabric and epoxy. Primarily, in the composite plates, a circular hole in the middle, a U single edge notch and semicircle double edge notches are formed. The specimens were subjected to buckling tests, being placed on their two edges, while the others were free. Afterwards, the load displacement graphs of the plates under pressure

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39

Bazˇant, Zdeneˇk P., Isaac M. Daniel, and Zhengzhi Li. "Size Effect and Fracture Characteristics of Composite Laminates." Journal of Engineering Materials and Technology 118, no. 3 (1996): 317–24. http://dx.doi.org/10.1115/1.2806812.

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Measurements of the size effect on the nominal strength of notched specimens of fiber composite laminates are reported. Tests were conducted on graphite/epoxy crossply and quasi-isotropic laminates. The specimens were rectangular strips of widths 6.4, 12.7, 25.4 and 50.8 mm (0.25, 0.50, 1.00 and 2.00 in.) geometrically similar in two dimensions. The gage lengths were 25, 51, 102 and 203 mm (1.0, 2.0, 4.0 and 8.0 in.). One set of specimens had double-edge notches and a [0/922]s crossply layup, and another set had a single-sided edge notch and a [0/±45/90]s, quasi-isotropic layup. It has been fo

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40

Veselý, Václav, Petr Konečný, Petr Lehner, Přemysl Pařenica, Jan Hurta, and Libor Žídek. "Investigation of Fracture and Electrical Resistivity Parameters of Cementitious Composite for their Utilization in Deterioration Models." Key Engineering Materials 577-578 (September 2013): 265–68. http://dx.doi.org/10.4028/www.scientific.net/kem.577-578.265.

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The paper is focusing on the investigation of the effective crack length obtained from bending test on concrete notched beams with the complementary measurements of electrical resistivity of the tested concrete. The electrical resistivity measurements are performed on several stages of the fracture process along the specimen ligament for each tested notched beam. Gained results of the concrete resistivity during the fracture process, i.e. its dependence on the crack length or opening, provide information which should be taken into account in structural durability analyses. The fracture tests a

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41

Günaydın, Berrin, Behcet Dağhan, and Ahmet Avcı. "Fatigue behavior of surface-notched composite pipes repaired by composite patches." International Journal of Damage Mechanics 22, no. 4 (2012): 490–98. http://dx.doi.org/10.1177/1056789512450596.

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42

KOYANAGI, Jun, Yu ADACHI, Shuichi ARIKAWA, and Satoru YONEYAMA. "OS16F054 Time-dependent Internal Damage Progress and Residual Strength in Notched Composite Laminates." Abstracts of ATEM : International Conference on Advanced Technology in Experimental Mechanics : Asian Conference on Experimental Mechanics 2011.10 (2011): _OS16F054——_OS16F054—. http://dx.doi.org/10.1299/jsmeatem.2011.10._os16f054-.

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43

Potti, P. K. G., B. N. Rao, and V. K. Srivastava. "Notched strength estimations of graphite/epoxy composite laminates containing central holes and cracks: A statistical approach." Aeronautical Journal 108, no. 1083 (2004): 263–69. http://dx.doi.org/10.1017/s0001924000005121.

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Abstract A statistical approach is followed for prediction of tolerences of notched strength of composite laminates using the recently proposed improved inherent flaw model (IFM). In order to examine the validity of this approach, the existing fracture data on graphite/epoxy composite laminates containing central holes and cracks were used. The notched strength estimations are found to be within the range of tested values.

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Tsai, K. H., C. L. Hwan, M. J. Lin, and Y. S. Huang. "Finite Element Based Point Stress Criterion for Predicting the Notched Strengths of Composite Plates." Journal of Mechanics 28, no. 3 (2012): 401–6. http://dx.doi.org/10.1017/jmech.2012.48.

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AbstractIn this study, a novel procedure has been developed for predicting the notched strengths of composite plates each with a center hole. In this approach, the stress distribution of a composite plate with a center hole is first obtained by a finite element analysis, in which the experimental notched strength is applied at the boundary of the finite element model. Secondly, the point stress criterion (PSC) is used to find the characteristic length for each plate with different size of hole by an interpolation of the finite element analysis results. The characteristic length is then express

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Liu, Xiu Qi, He Qin Xing, Li Li Zhao, and Dan Wang. "Processability and Mechanical Properties of CB/PVC Composite." Advanced Materials Research 681 (April 2013): 252–55. http://dx.doi.org/10.4028/www.scientific.net/amr.681.252.

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In our study, a new kind of material was prepared by melt blending with PVC as the matrix and carbon black (CB) as the filler. With the amount of CB increasing, the notched impact strength of composite increased greatly, however the tensile strength declined. When the amount of CB was 30%, the notched impact strength of composite was 9.66 KJ/m2, the tensile strength dropped from 48.3MPa to 33.2MPa. The distribution of CB in the PVC matrix is relatively uniform and no large agglomeration in the PVC matrix.

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VIOLETTE, MELANIE G. "COMPRESSIVE FAILURE PREDICTION FROM NONLINEAR FINITE ELEMENT ANALYSIS OF A NOTCHED 0 DEGREE COMPOSITE SPECIMEN." International Journal of Structural Stability and Dynamics 02, no. 01 (2002): 135–49. http://dx.doi.org/10.1142/s0219455402000464.

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The strength of unidirectional composites is often lower in compression than in tension, making compressive strength an especially important design criterion. The compressive strength is sensitive to the presence of notches and stress gradients. Finite element analysis was used to determine the strain gradient at a shallow circular notch in one edge of a 0 degree carbon/epoxy composite specimen, and to predict failure due to a localized buckling instability. The specimen was first analyzed with a "global" model of the full specimen, and displacements along a curve near the notch were stored an

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Vankan, Wilhelmus J., Bas HAH Tijs, Gerrit J. de Jong, Herman C. de Frel, and Niels K. Singh. "Strength of notched and un-notched thermoplastic composite laminate in biaxial tension and compression." Journal of Composite Materials 50, no. 25 (2016): 3477–500. http://dx.doi.org/10.1177/0021998315621963.

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PHAM, DINH CHI, and XIUSHAN SUN. "EXPERIMENTAL AND COMPUTATIONAL STUDIES ON PROGRESSIVE FAILURE ANALYSIS OF NOTCHED CROSS-PLY CFRP COMPOSITE." International Journal of Computational Materials Science and Engineering 01, no. 03 (2012): 1250023. http://dx.doi.org/10.1142/s2047684112500236.

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This work presents experimental and computational studies on progressive failure analysis of notched cross-ply carbon fiber reinforced polymer (CFRP) composite. The carbon/epoxy composite laminated with [90/0]s layup is tested using double-notched specimens loaded in tension. The load-displacement curve, failure load and damage patterns of all tested specimens are discussed. In addition, a numerical analysis approach based on material property degradation method (MPDM) and cohesive elements (CE) is illustrated to capture complex failure mechanisms and damage progression as observed in the test

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Wong, King Jye, Xiao Jing Gong, Shahram Aivazzadeh, and Mohd Nasir Tamin. "Moisture Effects on Patch Bonded Composite Repairs." Key Engineering Materials 709 (September 2016): 3–6. http://dx.doi.org/10.4028/www.scientific.net/kem.709.3.

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The present work investigated the effects of moisture absorption on the residual tensile strength of unnotched, notched and double-patch repaired carbon/epoxy composites. Patches were bonded to the parent plate using Araldite2015 adhesive. Specimens were aged in demineralised water at 70°C and tested at moisture content of 0% (dry), 3%, 6% and 7%. Results showed that upon ageing, a maximum of 11% and 17% of strength reduction was found in unnotched and repaired specimens, respectively. On the contrary, a maximum of 15% increment in strength was observed in notched specimens. In addition, good

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Sami, Y., R. M. Gad Elrab, and Y. ELshaer. "Modeling of Mechanical Behavior of Notched Composite Laminates." International Journal of Computer Applications 71, no. 8 (2013): 15–20. http://dx.doi.org/10.5120/12378-8725.

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