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Journal articles on the topic 'SINGLE EDGE-NOTCHED BEAM'

Author: Grafiati
Published: 16 January 2024

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1

Špaková, Jana, and Ján Dusza. "Comparison of R-Curve Behavior of Si3N4 Measured by Indentation Method and Single-Edge V-Notched Beam Technique (SEVNB)." Key Engineering Materials 409 (March 2009): 308–12. http://dx.doi.org/10.4028/www.scientific.net/kem.409.308.

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Study compare R-curve behaviour of silicon nitride obtained using Vickers indented beam specimens and single edge V-notched beam (SEVNB). R-curve measurement realized by Vickers indented beam was reported by Krause. Crack growth using single edge V-notched beam was observed in situ. The indentation experiments, in comparison with SEVNB method revealed higher R-curve values (KR=3.3 – 4.8 MPa.m1/2). The discrepancy in the R-curve results is attributed to inaccuracy related to the determination of indentation toughness. The indentation fracture toughness may include the aspects of crack opening b
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2

Zhou, Wu, Jinxin Huang, Wei Huang, and Dahsin Liu. "Dynamic fracture testing of polymethyl-methacrylate (PMMA) single-edge notched beam." Polymer Testing 91 (November 2020): 106833. http://dx.doi.org/10.1016/j.polymertesting.2020.106833.

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3

Lu, Wen Yan. "Failure Simulation of Single-Edge Notched Concrete Beam under Dynamic Tensile Loading." Applied Mechanics and Materials 638-640 (September 2014): 333–37. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.333.

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Crack growth of concrete beam under dynamic tensile loading is a typical discontinuous problem. It is difficult to realize the process of crack propagation using the conventional finite element method, but the extended finite element method (XFEM) is an effective method to analyze the fracture developed in recent years. This paper introduces the basic principle of XFEM and the analysis method of simulating concrete cracking and crack propagation with XFEM. At the end the crack expansion process of the concrete specimen with initial crack and dynamic load is done. The influence of crack propaga
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4

Bai, Haoran, Zhanyu Wang, Sangyu Luo, Zhaoliang Qu, and Daining Fang. "A modified single edge V-notched beam method for evaluating surface fracture toughness of thermal barrier coatings." Applied Mathematics and Mechanics 44, no. 5 (2023): 693–710. http://dx.doi.org/10.1007/s10483-023-3001-6.

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AbstractThe surface fracture toughness is an important mechanical parameter for studying the failure behavior of air plasma sprayed (APS) thermal barrier coatings (TBCs). As APS TBCs are typical multilayer porous ceramic materials, the direct applications of the traditional single edge notched beam (SENB) method that ignores those typical structural characters may cause errors. To measure the surface fracture toughness more accurately, the effects of multilayer and porous characters on the fracture toughness of APS TBCs should be considered. In this paper, a modified single edge V-notched beam
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5

Kim, Jae Hoon, Duck Hoi Kim, Nam Su Rho, Young Shin Lee, Song Heo Koo, and Soon Il Moon. "An Evaluation of Fracture Toughness of Glass-Filled Ceramic Using Notched Specimen." Key Engineering Materials 326-328 (December 2006): 927–30. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.927.

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The objective of this study is to evaluate the mechanical properties of static, quasidynamic and dynamic fracture toughness of glass-filled ceramic as promising structural material for a dome port cover of a ramjet engine system. Static and quasi-dynamic tests were carried out using SEPB (Single Edge Pre-cracked Beam) specimens. Static and dynamic fracture toughness tests were also performed using ASTM and strain gage methods with SENB (Single Edge Notched Beam) specimens machined with various notch radii. The critical notch radius was evaluated. Below the critical notch radius, the static fra
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6

Nindhia, Tjokorda Gde Tirta, and Tanja Lube. "Single Edge Precrack V-Notched Beam (SEPVNB) Fracture Toughness Testing on Silicon Nitride." Materials Science Forum 962 (July 2019): 205–9. http://dx.doi.org/10.4028/www.scientific.net/msf.962.205.

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The previous Measurement of fracture toughness test by using bright indentation for precracked beam method (ASTM C1421) was found difficult to be carried out due to difficulty in precrack generation and measurement of the crack size. In this research single edge precrack V-notch beam (SEPVNB) is introduced as an alternative to solve the problem from previous standardized method. A real crack that can created with referred size is recognized as the best condition for fracture toughness test. The material prepared for this purpose was silicon nitride (Si3N4) produced by CeramTec (Plochingen, Ger
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7

AWAJI, Hideo, Tadao WATANABE, Tatsuya YAMADA, Yoshihisa SAKAIDA, Hiromiti TAMIYA, and Heizaburo NAKAGAWA. "Evaluation of fracture toughness by a single-edge V-notched beam method." Transactions of the Japan Society of Mechanical Engineers Series A 56, no. 525 (1990): 1148–53. http://dx.doi.org/10.1299/kikaia.56.1148.

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8

Petersen, DR, RE Link, MP Wagoner, WG Buttlar, and GH Paulino. "Development of a Single-Edge Notched Beam Test for Asphalt Concrete Mixtures." Journal of Testing and Evaluation 33, no. 6 (2005): 12579. http://dx.doi.org/10.1520/jte12579.

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9

Awaji, Hideo, and Yoshihisa Sakaida. "V-Notch Technique for Single-Edge Notched Beam and Chevron Notch Methods." Journal of the American Ceramic Society 73, no. 11 (1990): 3522–23. http://dx.doi.org/10.1111/j.1151-2916.1990.tb06490.x.

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10

Tatarko, Peter, Zdeněk Chlup, and Ján Dusza. "Microstructure, Fracture and Damage Mechanisms in Rare-Earth Doped Silicon Nitride Ceramics." Key Engineering Materials 465 (January 2011): 93–96. http://dx.doi.org/10.4028/www.scientific.net/kem.465.93.

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Influence of rare-earth oxide additives on the strength, fracture toughness and tribological behaviour of hot-pressed Si3N4 and Si3N4/SiC micro/nano-composites has been investigated. Four-point bending mode and ball on disc methods have been used for strength and wear tests and Single-Edge V-Notched Beam, Chevron Notched Beam, Indentation Strength and Indentation Fracture techniques for fracture toughness measurement. Fractography has been used to characterize strength limiting defects, fracture micromechanisms and damage mechanisms during the wear test. The strength values were strongly influ
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11

Sakaguchi, S., N. Murayama, Y. Kodama, and F. Wakai. "R-curve measurement of silicon nitride ceramics using single-edge notched beam specimens." Journal of Materials Science 29, no. 19 (1994): 5183–87. http://dx.doi.org/10.1007/bf01151114.

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12

Kim, Hyunwook, Michael P. Wagoner, and William G. Buttlar. "Micromechanical fracture modeling of asphalt concrete using a single-edge notched beam test." Materials and Structures 42, no. 5 (2008): 677–89. http://dx.doi.org/10.1617/s11527-008-9412-8.

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13

Zhang, Haiyang, Qin Qu, and Yang He. "Fracture toughness of CTBN modified PF particleboard based on equal deflection rigidity." MATEC Web of Conferences 275 (2019): 01021. http://dx.doi.org/10.1051/matecconf/201927501021.

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The fracture toughness of particleboard should be evaluated when it was intended to use in the structure system. Single edge notched beam (SENB) test method was employed to measure stress intensity factor (SIF) of the internal middle layer of the PF and CTBN modified PF particleboard. Equal deflection rigidity algorithm (EDRA) was used to homogenized the sandwich bi-material beam in order to make the test procedure match ASTM E399-2017. The results shown that the optimized CTBN addition was among 8% to 12% and the improve ratio of SIF of the particleboard middle layer was 27.27 %. Owing to the
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14

Ding, Biao, Xiaolong Zou, Zixin Peng, and Xiang Liu. "Evaluation of Fracture Resistance of Asphalt Mixtures Using the Single-Edge Notched Beams." Advances in Materials Science and Engineering 2018 (2018): 1–9. http://dx.doi.org/10.1155/2018/8026798.

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To determine and compare the fracture properties of different asphalt mixtures, single-edge notched beam (SENB) tests using three types of asphalt mixtures were applied in this study under the conditions of different notched depths and different temperatures. The effects of notched depths and temperatures on the fracture toughness and fracture energy were analyzed. The results indicate that the notch depth has no significant effects on the fracture toughness and the fracture energy, but the gradation has relatively obvious effects on the fracture energy, which the larger contents of course agg
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15

Li, S. B., L. F. Cheng, and L. T. Zhang. "Identification of damage tolerance of Ti3SiC2by hardness indentations and single edge notched beam test." Materials Science and Technology 18, no. 2 (2002): 231–33. http://dx.doi.org/10.1179/026708301225000653.

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16

Xu, Ping, Jinyi Ma, Minxia Zhang, Yahong Ding, and Lingqi Meng. "Fracture Energy Analysis of Concrete considering the Boundary Effect of Single-Edge Notched Beams." Advances in Civil Engineering 2018 (November 21, 2018): 1–10. http://dx.doi.org/10.1155/2018/3067236.

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The method of determining concrete fracture energy recommended by RILEM has an obvious size effect, so determining fracture energy that is unaffected by size of the test specimen is difficult. In this study, 60 high-strength concrete single-edge notched beams (SENBs) of different sizes, crack length-to-depth ratios, and span-to-depth ratios were subjected to the three-point loading test as recommended by RILEM. Then, the influences of the boundary effect on the fracture energy were identified. Based on the SENB boundary effect model, a piecewise function of the interrelationships between the e
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17

Jiang, Liang, Yu Hong Chen, Fei Han, and Liang Jiang. "Fracture Behavior of Silicon Carbide Measured by Different Test Methods." Advanced Materials Research 177 (December 2010): 140–43. http://dx.doi.org/10.4028/www.scientific.net/amr.177.140.

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Single edge notched beam (SENB) and indentation methods (IM) were used to test the fracture toughness (KIC) of SiC ceramic in present work. Both of testing results were compared. The applicative computational equation of indentation crack was determined through studying indentation morphology formed by IM. The results showed that the indentation crack in SiC could be Babcock crack, and the KIC value calculated by Niihara (P) indentation equation approximated to real value mostly with minimum relative deviation.
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18

Wang, Jia Liang, Xian Feng Shen, Meng Liang Bai, Gang Zhou, and Mian Jiang. "Error Analysis of Ceramic Materials Fracture Toughness Measured by the Single Edge Notched Beam Method." Advanced Materials Research 1004-1005 (August 2014): 434–37. http://dx.doi.org/10.4028/www.scientific.net/amr.1004-1005.434.

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In this study, the fracture toughness of ceramic materials such as Al2O3, SiC, Si3N4, ZrO2 were measured by the SENB method and IF method respectively. The results shown that the value of fracture toughness obtained from the SENB method is significantly higher than the IF method. When the notch width is fixed, with the flexural strength of ceramic materials increasing, the error of fracture toughness from the SENB method compared to the IF method is increased. For example, the flexural strength of ZrO2 is about 847MPa and the error of fracture toughness from the SENB method compared to the IF
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19

Tatami, Junichi, Masaki Katayama, Masahiro Ohnishi, et al. "Local Fracture Toughness of Si3 N4 Ceramics Measured using Single-Edge Notched Microcantilever Beam Specimens." Journal of the American Ceramic Society 98, no. 3 (2014): 965–71. http://dx.doi.org/10.1111/jace.13391.

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20

Yang, Hai Bo, Wei Li, Ai Dang Shan, and Jian Sheng Wu. "Effect of Annealing on the Microstructures and Mechanical Properties of Mo3Si-Mo5Si3 Eutectic." Materials Science Forum 449-452 (March 2004): 697–700. http://dx.doi.org/10.4028/www.scientific.net/msf.449-452.697.

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The microstructures and mechanical properties of arc-melting processed Mo3Si-Mo5Si3 eutectic have been investigated. The Vickers hardness of Mo3Si-Mo5Si3 eutectic alloy at room temperature is on the order of 1350Hv. The fracture toughness value of the alloy at room temperature is 1.39MPam1/2 measured by Single edge-notched beam specimen technique and 1.61MPam1/2 measured by Indentation technique. The compressive strengths at 1300 oC and 1400 oC under a strain rate of 10-4s-1 are about 550MPa and 300MPa respectively.
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21

AWAJI, Hideo, Seong-Min CHOI, and Daniel Doni JAYASEELAN. "Indirect Estimation of Critical Frontal Process-Zone Size Using a Single-Edge V-Notched-Beam Technique." Journal of the Ceramic Society of Japan 109, no. 1271 (2001): 591–95. http://dx.doi.org/10.2109/jcersj.109.1271_591.

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22

Teng, Guocui, Chuanfeng Zheng, Xiangyin Chen, Xuli Lan, Yimo Zhu, and Chao Shan. "Numerical fracture investigation of single-edge notched asphalt concrete beam based on random heterogeneous FEM model." Construction and Building Materials 304 (October 2021): 124581. http://dx.doi.org/10.1016/j.conbuildmat.2021.124581.

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23

Iizuka, H., and M. Tanaka. "Fracture toughness measurement with fatigue-precracked single edge-notched beam specimens of WC-Co hard metal." Journal of Materials Science 26, no. 16 (1991): 4394–98. http://dx.doi.org/10.1007/bf00543657.

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24

Choi, S. R., and J. A. Salem. "Fracture toughness of PMMA as measured with indentation cracks." Journal of Materials Research 8, no. 12 (1993): 3210–17. http://dx.doi.org/10.1557/jmr.1993.3210.

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Fracture toughness of polymethyl methacrylate (PMMA) was evaluated with indentation cracks. The cracks were developed by indenting in a liquid acetone environment, as suggested by previous researchers. Due to the inconsistency in crack configurations with varying indentation loads and to the negligible residual stress from indentation, the application of the indentation strength method was limited in evaluating fracture toughness of PMMA. The semielliptical crack approximation, however, particularly at a low indentation load of 9.8 N, resulted in reasonable agreement with the value determined
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25

Szutkowska, Magdalena, and Marek Boniecki. "Crack Growth Resistance of Carbide Reinforced Composite Ceramics Based on Alumina." Key Engineering Materials 409 (March 2009): 231–36. http://dx.doi.org/10.4028/www.scientific.net/kem.409.231.

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The relationship of KR versus crack length c (R curve) for Al2O3-30wt.% Ti(C,N).and for comparison alumina ceramics has been examined. The R-curve has been evaluated using pronounced long-crack formed during the three point bending (3PB) of the double edge notched beam. A combination of in situ microscopic crack growth observation and mechanical testing enabled measurement of crack growth resistance curves. The special device consisting of light microscope coupled with CCD camera, was fitted to Zwick 1446 testing machine. These observations reveal the existence of flat R-curve for Al2O3-30wt.%
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26

Chen, Chun Hong, and Hideo Awaji. "Novel Estimation of Critical Frontal Process Zone of Ceramics by a Single-Edge V-Notched-Beam Technique." Key Engineering Materials 280-283 (February 2007): 1745–50. http://dx.doi.org/10.4028/www.scientific.net/kem.280-283.1745.

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A novel estimation for the critical size of the frontal process zone of ceramics is proposed using a single-edge V-notched beam (SEVNB) technique. A three-point flexure test is carried out on aluminum titanate ceramics containing a sharp V-shaped notch with different depth. An exact solution of the critical local stress is analyzed at a critical distance from the notch tip. The critical frontal process zone size is determined as the distance between the notch tip and the point where the critical local stress equals the flexural strength of specimens without notches, based on the local fracture
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27

Graba, Marcin. "Constraint evaluation and effects on selected fracture parameters for single-edge notched beam under four-point bending." Open Engineering 12, no. 1 (2022): 70–101. http://dx.doi.org/10.1515/eng-2022-0008.

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Abstract This article presents the results of analytical and numerical research focused on the numerical determination of selected fracture mechanics parameters for beams containing a crack in the state of four-point bending with the dominance of a plane strain state. Based on the numerical results, the influence of the specimen geometry and material characteristic on selected fracture parameters is discussed. By analogy to the already known solutions, new hybrid formulas were presented, which allow to estimate the J integral, crack tip opening displacement, and load line displacement. In addi
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28

Wan, J., M. Zhou, X. S. Yang, et al. "Fracture characteristics of freestanding 8wt% Y2O3–ZrO2 coatings by single edge notched beam and Vickers indentation tests." Materials Science and Engineering: A 581 (October 2013): 140–44. http://dx.doi.org/10.1016/j.msea.2013.05.086.

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29

Ghafari, Sepehr, Fereidoon Moghadas Nejad, and Hadi Kazemi. "Low-Temperature Fracture Performance of Polymerized Sulfur Modified Asphalt Concrete Mixtures." Key Engineering Materials 951 (August 7, 2023): 155–60. http://dx.doi.org/10.4028/p-xnevz3.

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In this research, asphalt concrete (AC) mixtures modified by polymerized Sulfur were prepared. PG58-22 bitumen was used as the base binder for the mixtures along with crushed siliceous aggregate. The base binder was replaced by 20%, 30%, and 50% ratios with polymerized Sulfur in the modified mixtures while the reference mix was fabricated with 0% binder replacement. Single edge notched-beam fracture tests (SE(B)) were carried out in a temperature range of 0 °C to-20 °C on the AC beam specimens. Load-displacement curves were obtained from the experiments and the fracture energy of the mixtures
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30

Dourado, N., and S. Morel. "On the Evaluation of the R-Curve Including the Self-Weight Contribution: Mortar." Key Engineering Materials 488-489 (September 2011): 609–12. http://dx.doi.org/10.4028/www.scientific.net/kem.488-489.609.

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In fracture tests involving the Single-Edge-Notched beam loaded in Three or Four-Point-Bending as well as in other specimen shapes, the specimen weight contributes to the overall loading of the system. Unless special methods are put into practice, the contribution of the specimen weight is not compensated, leading to misevaluations of fracture parameters obtained in the experiments. In this work a method taking into account the exact contribution of the specimen self-weight is proposed to evaluate the Resistance-curve of mortar. Cohesive crack modeling accounting for the structure self-weight
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31

Conzone, Samuel D., William R. Blumenthal, and James R. Vainer. "Fracture Toughness of TiB2 and B4C Using the Single-Edge Precracked Beam, Indentation Strength, Chevron Notched Beam, and Indentation Strength Methods." Journal of the American Ceramic Society 78, no. 8 (1995): 2187–92. http://dx.doi.org/10.1111/j.1151-2916.1995.tb08634.x.

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32

Gontarz, Jakub, and Jerzy Podgórski. "Simulation of four-point beam bending test using the X-FEM method." Budownictwo i Architektura 19, no. 3 (2020): 057–67. http://dx.doi.org/10.35784/bud-arch.2143.

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This article presents the results of the computer simulations of a four-point bending test of a concrete single-edge notched beam. In this publication, the authors compared the X-FEM method of simulating the crack in the Abaqus FEA system. The paper also contains the results obtained with the Abaqus subroutine recently developed by the authors, used for defining the direction of the crack and the failure criterion. The publication explains the way of working of this algorithm. The described calculations show that computer analysis gives unrealistic results in terms of the destructive force. SE
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33

Zhou, Xin Gui, Hai Jiao Yu, Bo Yun Huang, Jian Gao Yang, and Ze Lan Huang. "Effect of Silicon Carbide Interlayers on the Mechanical Behavior of T800-HB-Fiber-Reinforced Silicon Carbide-Matrix Composites." Key Engineering Materials 368-372 (February 2008): 1844–46. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.1844.

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The influence of the fiber/matrix interlayers on the mechanical properties of T800-HB fiber (a kind of carbon fiber) (the fibrous is three-dimensional four-directional braided) reinforced silicon carbide (SiC) matrix composites has been evaluated in this paper. The composites were fabricated through PIP process, and SiC layers were deposited as fiber/matrix interlayers by the isothermal CVD process. Fiber/matrix debonding and relatively long fiber pullouts were observed on the fracture surfaces. The mechanical properties were investigated using three-point bending test and single-edge notched
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34

Jiang, Liang, Yu Hong Chen, Bin Chen, and Wen Zhou Sun. "Fracture Behavior of SiC-TiB2 Composite Measured by Different Test Methods." Key Engineering Materials 492 (September 2011): 14–17. http://dx.doi.org/10.4028/www.scientific.net/kem.492.14.

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SiC-TiB2composite was prepared by boron (B) and carbon(C) as sintering additive via presureless sintering in 2180°C. Fracture toughness of SiC-TiB2measured by indentation method and single edge notched beam specimen tenichques were analyzed and compared, and the most suitable indentation method equation was confirmed. Results revealed that the fracture toughness and flexure strength of the materials were influenced at varied degree by the content of TiB2, which had no effect on the selection of the most suitable equation for calculating the fracture toughness of the materials by indentation me
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35

Domingues, Natália Bertolo, Beatriz Regalado Galvão, Sebastião Ribeiro, Antonio Alves de Almeida Junior, Diogo Longhini, and Gelson Luís Adabo. "Comparison of the indentation strength and single-edge-v-notched beam methods for dental ceramic fracture toughness testing." Brazilian Journal of Oral Sciences 15, no. 2 (2017): 109. http://dx.doi.org/10.20396/bjos.v15i2.8648760.

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Aim: To study influence of the cooling rate after sintering a veneering porcelain (Vita VM9) on fracture toughness by indentation strength (IS) and single-edge-v-notched beam (SEVNB) methods. Methods: Vita VM9 bars were sintered according to the manufacturer’s recommendation and cooled under three conditions: Slow (inside the furnace from sintering temperature to room temperature); Normal (inside the furnace from sintering temperature to 500 ºC and outside the furnace from 500 ºC to room temperature); and Fast (outside the furnace from sintering temperature to room temperature). Fracture tough
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36

Ponraj, R., and S. Ramakrishna Iyer. "A simple preparation method to determine fracture toughness using the single edge notched beam technique for porcelain ceramics." Journal of Materials Science Letters 12, no. 6 (1993): 417–19. http://dx.doi.org/10.1007/bf00609171.

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37

Szutkowska, Magdalena, Marek Boniecki, and Mirosław M. Bućko. "R-Curve Behaviour of Alumina Matrix Ceramics with Long Cracks." Advances in Science and Technology 45 (October 2006): 1652–57. http://dx.doi.org/10.4028/www.scientific.net/ast.45.1652.

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The R-curve (KR versus crack length c) behavior has been examined in alumina-10 wt% zirconia ceramics with 3 mol% yttria stabilized zirconia, alumina-10 wt% zirconia ceramics with 12 mol% nano ceria stabilized zirconia and Al2O3-30 wt% Ti(C,N) ceramics. An observation of in situ microscopic long-through thickness crack growth during three point bending (3PB) of a single edge notched beam (SENB) enabled measurement of the R-curve. It was found that both aluminazirconia ceramics with yttria or ceria stabilized zirconia exhibit a rising R-curve while for Al2O3-30 wt% Ti(C,N) ceramics such relatio
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38

Zhang, Lian Meng, Li Chun Yu, Dao Ren Gong, and Qiang Shen. "Fabrication and Mechanical Properties of TZ-3Y20A /Mo Multilayer Composites." Materials Science Forum 492-493 (August 2005): 605–8. http://dx.doi.org/10.4028/www.scientific.net/msf.492-493.605.

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In the present work, TZ-3Y20A/Mo multilayer composites were prepared by sedimentation method. Appropriate settling parameters were chosen and green bodies of multilayer composites were obtained by settling TZ-3Y20A powder and Mo powder in turn according to the designed individual layer thickness. Then green laminates were hot pressed at 1773K for an hour under the pressure of 20MPa. Three-point Bending and Single Edge Notched Beam (SENB) tests were adopted to evaluate the flexure strength and fracture toughness of the samples. The results showed that, compared to TZ-3Y20A ceramics, the fractur
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39

Donners, M. A. H., L. J. M. G. Dortmans, and G. de With. "Adsorption and Kinetic Effects on Crack Growth in MnZn Ferrites." Journal of Materials Research 15, no. 6 (2000): 1377–88. http://dx.doi.org/10.1557/jmr.2000.0200.

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The variation of the fracture toughness of MnZn ferrite ceramics with varying loading rate and humidity was determined with the aid of the single edge notched beam (SENB) test. A strong decrease with increasing humidity and decreasing loading rate was observed. A model for subcritical crack growth incorporating kinetic and adsorption effects was formulated to analyze the data. The value of the adsorptioncontrolled fracture toughness was determined independently by double torsion experiments and agreed favorably with the values as determined from the SENB data using the model. The strength of t
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40

Christmann, J., R. Müller, K. G. Webber, et al. "Measurement of the fracture toughness of polycrystalline bubbly ice from an Antarctic ice core." Earth System Science Data 7, no. 1 (2015): 87–92. http://dx.doi.org/10.5194/essd-7-87-2015.

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Abstract. The critical fracture toughness is a material parameter describing the resistance of a cracked body to further crack extension. It is an important parameter for simulating and predicting the breakup behavior of ice shelves from the calving of single icebergs to the disintegration of entire ice shelves over a wide range of length scales. The fracture toughness values are calculated with equations that are derived from an elastic stress analysis. Additionally, an X-ray computer tomography (CT scanner) was used to identify the density as a function of depth. The critical fracture toughn
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41

Christmann, J., R. Müller, K. G. Webber, et al. "Measurement of fracture toughness of an ice core from Antarctica." Earth System Science Data Discussions 7, no. 2 (2014): 611–28. http://dx.doi.org/10.5194/essdd-7-611-2014.

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Abstract. The critical fracture toughness is a material parameter describing the resistance of a cracked body to further crack extension. It is an important parameter to simulate and predict the break-up behaviour of ice shelves from calving of single icebergs to the disintegration of entire ice shelves over a wide range of length scales. The fracture toughness values are calculated with equations that are derived from an elastic stress analysis. Additionally, an X-ray computer tomography (CT scanner) was used to identify the density as a function of depth. The critical fracture toughness of 9
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Qin, Xiaofeng, Haijian Su, Yujie Feng, Honghui Zhao, and Thi Nhan Pham. "Fracture and deformation behaviors of saturated and dried single-edge notched beam sandstones under three-point bending based on DIC." Theoretical and Applied Fracture Mechanics 117 (February 2022): 103204. http://dx.doi.org/10.1016/j.tafmec.2021.103204.

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Özcoban, H., V. Salikov, H. Jelitto, and G. A. Schneider. "Experimental Crack Front Investigation of Unpoled Soft Lead Zirconate Titanate (PZT) Using the Single Edge V-Notched Beam (SEVNB) Method." Experimental Mechanics 52, no. 9 (2012): 1565–68. http://dx.doi.org/10.1007/s11340-012-9599-z.

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Zhou, Yang, Guang Jiang Yuan, Jian Feng Tong, Lin Hu Du, Da Ming Chen, and Hong Xiang Zhai. "Dynamic Observation of Fracture Process in a Silicon Carbide- Matrix Laminated Ceramic Composite." Key Engineering Materials 368-372 (February 2008): 1847–50. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.1847.

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The dynamic process of crack initiation and propagation in a SiC/BN-Al2O3 laminated composite was observed in situ by scanning electron microscopy. During a bending test with a single-edge notched-beam specimen, an interfacial crack first initiated in the interlayer near the notch tip, after which a through-thickness crack formed in the matrix layer at the notch tip. After the through-thickness crack had grown across the first matrix layer, it was deflected by the next interlayer and again became an interfacial crack. Interfacial cracks and through-thickness cracks were generated alternately u
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Wang, Li Juan, Jin Sheng Liang, Xing Fu Di, and Xue Mei Pei. "Effects of Sepiolite Mineral Nano-Fiber on Strength and Toughness of Ceramics." Applied Mechanics and Materials 320 (May 2013): 599–606. http://dx.doi.org/10.4028/www.scientific.net/amm.320.599.

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The effects of sepiolite mineral nanofiber on strength and toughness of ceramics were investigated by bone china with addition of sepiolite mineral nanofiber. The flexural strength and fracture toughness were tested by three point bending method and single edge notched beam (SENB) method, and the microstructure of the ceramics was studied by scanning electron microscopy (SEM), X-ray diffraction (XRD) and optical microscopy. The results indicated that the structure pattern of sepiolite mineral nanofiber became much shorter and thicker after calcinations. Proper addition of sepiolite mineral nan
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Chen, Ming Wei, Hai Peng Qiu, and Wei Jie Xie. "Preparation and Properties of SiC/Si-B-C-N Ceramic Composites." Key Engineering Materials 697 (July 2016): 489–93. http://dx.doi.org/10.4028/www.scientific.net/kem.697.489.

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Abstract：SiC/Si-B-C-N and SiC/SiC ceramic matrix composites were prepared through a combination of chemical vapor infiltration (CVI) and polymer impregnation pyrolysis process(PIP). The microscopic morphology and solid phase structure of the SiC/Si-B-C-N and SiC/SiC composites were investigated by SEM and XRD respectively. Moreover,the flexural strength and fracture toughness were measured using three point bending and single-edge notched beam test. Results showed that the formation of crystalline phases transformation was restrained by introduce BN into matrix phase, which might improve the s
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Leon, Lee, Jovanca Smith, and Annabella Frank. "Intermediate Temperature Fracture Resistance of Stone Matrix Asphalt Containing Untreated Recycled Concrete Aggregate." Baltic Journal of Road and Bridge Engineering 18, no. 1 (2023): 94–121. http://dx.doi.org/10.7250/bjrbe.2023-18.590.

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The sustainable alternative of blending natural limestone aggregates (NAs) with recycled concrete aggregate (RCA) was investigated in this research in order to encourage the utilization of recycled concrete in heavy traffic paving applications. The Marshall Mix design method was used to optimize mix designs containing 0%, 10%, 35% and 50% RCA. Single-edge notched beam (SENB) and semi-circular bending (SCB) tests were then applied and the fracture energy and fracture toughness determined. The tests were conducted at intermediate temperatures (5 °C, 15 °C, 25 °C) and varying notch depths (0.2H,
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Ghafari, Sepehr, Fereidoon Moghadas Nejad, and Hadi Kazemi. "Developing a Single-Specimen Technique for Low-Temperature R-Curve Determination of Asphalt Concrete Using a Modified Unloading Compliance Method." Key Engineering Materials 951 (August 7, 2023): 141–46. http://dx.doi.org/10.4028/p-z0h762.

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Fracture resistance curves (R-curves) have served as a robust tool in characterizing the entire fracture process of engineering materials. However, obtaining such curves for asphalt concrete (AC) mixtures is cumbersome due to the non-linear inelastic behavior of the mixtures. In this research, a single-specimen technique is developed based on the unloading compliance method which is used for metals. AC mixtures with limestone aggregate and PG58-22 binder were prepared. Beam specimens were fabricated and single-edge notched beam (SE(B)) fracture testing was conducted at low temperatures. A load
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Ghafari, Sepehr, and Fereidoon Moghadas Nejad. "Developing Mixed-Mode (I/II) Fracture Resistance Curves for Asphalt Concrete Mixtures at Low Temperatures." Key Engineering Materials 958 (October 5, 2023): 195–99. http://dx.doi.org/10.4028/p-bsxzr2.

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Mixed mode (I/II) loading conditions occur frequently in the asphalt layers of pavements. Therefore, a low-temperature fracture analysis based on mixed mode loading turns out to be of utmost importance. In this research, asphalt concrete (AC) mixtures were prepared using two aggregate gradations and PG58-22 bitumen. AC beams were produced by the mixtures and notch offset values of 48 mm, 75.2 mm, and 107.2 mm were fabricated in the beams in order to be tested in a modified single-edge notched beam (SE(B)) setup. The tests were carried out at two temperature levels of-5 °C and-15 °C. Using the
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To, Theany, Fabrice Célarié, Clément Roux-Langlois, et al. "Fracture toughness, fracture energy and slow crack growth of glass as investigated by the Single-Edge Precracked Beam (SEPB) and Chevron-Notched Beam (CNB) methods." Acta Materialia 146 (March 2018): 1–11. http://dx.doi.org/10.1016/j.actamat.2017.11.056.

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