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Journal articles on the topic 'Brittle behaviour'

Author: Grafiati

Published: 4 June 2021

Last updated: 21 February 2023

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1

Banerjee, Rajat, and Bikas K. Chakrabarti. "Critical fatigue behaviour in brittle glasses." Bulletin of Materials Science 24, no. 2 (April 2001): 161–64. http://dx.doi.org/10.1007/bf02710094.

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2

Vallet, D., and J. C. Charmet. "Mechanical behaviour of brittle cement grains." Journal of Materials Science 30, no. 11 (June 1995): 2962–67. http://dx.doi.org/10.1007/bf00349670.

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3

Dlouhý, Ivo, Zdeněk Chlup, and Aldo Roberto Boccaccini. "Fracture Behaviour of Brittle (Glass) Matrix Composites." Materials Science Forum 482 (April 2005): 115–22. http://dx.doi.org/10.4028/www.scientific.net/msf.482.115.

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A number of examples exist that indicate the potential for increasing the toughness of brittle matrices by dispersing different reinforcements. For further development of these advanced materials the actual material response during mechanical loading under presence of flaws appears to be important. Theoretical and experimental knowledge acquired on different kinds of brittle matrix composites is summarised in the paper. These include glass matrix composites with metallic particles, alumina platelets, continuous SiC (Nicalon®) fibres, and both chopped fibres and ZrO2particles (hybrid composites

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4

Xiao, Xiaolan, Jiayun Deng, Qiang Xiong, Qiusheng Yan, Zhengtao Wu, and Huatay Lin. "Scratch Behaviour of Bulk Silicon Nitride Ceramics." Micromachines 12, no. 6 (June 16, 2021): 707. http://dx.doi.org/10.3390/mi12060707.

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Si3N4 ceramic is generally recognized as being difficult to machine due to its hardness and brittleness. It is necessary to control the normal load applied and the machined depth of the abrasive particles in order to eliminate surface/subsurface damage and defects during the grinding or polishing. In this study, scratch experiments were conducted on the polished surface of Si3N4 specimens to investigate the brittle–ductile transformation and the evolution of material removal mechanisms. In addition, the cracking behaviour of Si3N4 ceramic was characterized by indentation tests. The Vickers ind

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5

Xicheng, Huang, Li Shangkun, Qiang Wei, Chen Gang, Tian Rong, and Wang Lixiang. "Numerical Simulation of Crack Initiation and Growth in PBX High Explosive Subject to Compression." EPJ Web of Conferences 183 (2018): 01019. http://dx.doi.org/10.1051/epjconf/201818301019.

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PBX solid high explosive exhibits brittle behaviour in uniaxial tension, quasi-brittle in uniaxial compression, and ductile when subject to high confining pressure. Tension cracking is the primary failure mode of PBX quasi-brittle solid, which is the main effect leading to overall failure of structural integrity. One characteristics of brittle or quasi-brittle solids, such as PBXs, is that when subject to overall compressive loading, the tensile cracks can still initiate inside the material due to existence of imperfection within the materials. In present study the extended finite element meth

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6

Maeno, Keiki, Masaki Tanaka, Kenji Higashida, Masahiro Fujikura, and Kohsaku Ushioda. "The Brittle-to-Ductile Transition Behaviour in Fe-Al Single Crystalline Alloys." Advanced Materials Research 409 (November 2011): 243–48. http://dx.doi.org/10.4028/www.scientific.net/amr.409.243.

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The morphology of deformation twinning, which influences a brittle fracture at low temperatures, was investigated in Fe-8mass%Al. Tensile tests were performed at 129K and room temperature. The specimen tested at room temperature showed yielding and kept deformed by usual slip while the specimen tested at 129K fractured in a brittle manner in an elastic regime with a number of straight markings due to deformation twinning. Detail analysis of those deformation twins suggests that the collision of deformation twinning is the initiation site of the brittle fracture.

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7

Traidi, Khalil, Véronique Favier, Philippe Lestriez, Karl Debray, Laurent Langlois, and Tudor Balan. "Modelling Semi-Solid Behaviour and Brittle Temperature Range." Solid State Phenomena 285 (January 2019): 361–66. http://dx.doi.org/10.4028/www.scientific.net/ssp.285.361.

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In this paper, a new elastic viscoplastic micromechanical modelling is proposed to represent the semi-solid behaviour and predict the ductile-brittle transition of the C38LTT near the solidus. It is based on a viscoplastic modelling previously presented in [1]. The originality of the new model comes from three main enhancements: the transition between the solid state and the semi-solid state was included meaning that the material properties were taken temperature-dependent, the elastic properties was taken into account similarly as [2] and the evolution of the internal variable describing the

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8

Renshaw, Carl E., and Erland M. Schulson. "Universal behaviour in compressive failure of brittle materials." Nature 412, no. 6850 (August 2001): 897–900. http://dx.doi.org/10.1038/35091045.

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9

Webster, S. E., and P. H. Bateson. "Significance of local brittle zones to structural behaviour." Materials Science and Technology 9, no. 1 (January 1993): 83–92. http://dx.doi.org/10.1179/mst.1993.9.1.83.

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10

Sieber, Lars, and Richard Stroetmann. "The brittle fracture behaviour of old mild steels." Procedia Structural Integrity 5 (2017): 1019–26. http://dx.doi.org/10.1016/j.prostr.2017.07.160.

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11

Lynch, S. P. "Concerning the anomalous brittle fracture behaviour of iridium." Scripta Materialia 57, no. 2 (July 2007): 85–88. http://dx.doi.org/10.1016/j.scriptamat.2007.03.039.

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12

Abraham, Farid F., and Huajian Gao. "Anomalous ductile-brittle fracture behaviour in fcc crystals." Philosophical Magazine Letters 78, no. 4 (October 1998): 307–12. http://dx.doi.org/10.1080/095008398177887.

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13

Roudaut, Ga�lle, Fabienne Poirier, Denise Simatos, and Martine Le Meste. "Can dynamical mechanical measurements predict brittle fracture behaviour?" Rheologica Acta 44, no. 1 (June 25, 2004): 104–11. http://dx.doi.org/10.1007/s00397-004-0392-5.

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14

Kabir, R., Alfred Cornec та Wolfgang Brocks. "Quasi-Brittle Fracture of Lamellar γTiAl: Simulation Using a Cohesive Model with Stochastic Approach". Key Engineering Materials 324-325 (листопад 2006): 1317–20. http://dx.doi.org/10.4028/www.scientific.net/kem.324-325.1317.

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Quasi-brittle fracture of fully lamellar two phase (α2+γ)TiAl is investigated both experimentally and numerically. Fracture tests are conducted at room temperature, which fail in a quasi-brittle and unstable manner but exhibit significant variations in crack initiation and propagation prior to unstable failure. Fractographic investigations are performed which elucidate the micromechanical causes of the macroscopic behaviour. The observed deformation and fracture behaviours of the specimens are simulated by a finite element model containing cohesive elements for modelling the material separatio

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15

Gesualdo, Antonio, and Michelina Monaco. "Constitutive behaviour of quasi-brittle materials with anisotropic friction." Latin American Journal of Solids and Structures 12, no. 4 (August 2015): 695–710. http://dx.doi.org/10.1590/1679-78251345.

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16

Kim, Hyoung Seop, and Ping Ma. "Mode II Fracture Behaviour of PBT Modified Brittle Epoxies." Key Engineering Materials 145-149 (October 1997): 759–64. http://dx.doi.org/10.4028/www.scientific.net/kem.145-149.759.

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17

Hong-zhi, Ding, Zhao Ru-bao, and Xing Xiu-san. "The fractal behaviour of crack propagation in brittle materials." Acta Physica Sinica (Overseas Edition) 5, no. 11 (November 1996): 801–8. http://dx.doi.org/10.1088/1004-423x/5/11/001.

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18

Pei, Linqing, Cheng Lu, Kiet Tieu, Xing Zhao, Liang Zhang, Kuiyu Cheng, and Guillaume Michal. "Brittle versus ductile fracture behaviour in nanotwinned FCC crystals." Materials Letters 152 (August 2015): 65–67. http://dx.doi.org/10.1016/j.matlet.2015.03.074.

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19

Shao, J. F. "Poroelastic behaviour of brittle rock materials with anisotropic damage." Mechanics of Materials 30, no. 1 (September 1998): 41–53. http://dx.doi.org/10.1016/s0167-6636(98)00025-8.

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20

Taliercio, Alberto, and Roberto Coruzzi. "Mechanical behaviour of brittle matrix composites: a homogenization approach." International Journal of Solids and Structures 36, no. 24 (August 1999): 3591–615. http://dx.doi.org/10.1016/s0020-7683(98)00167-x.

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21

Sadowski, Tomasz. "Modelling of semi-brittle MgO ceramic behaviour under compression." Mechanics of Materials 18, no. 1 (May 1994): 1–16. http://dx.doi.org/10.1016/0167-6636(94)90002-7.

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22

Roberts, R. J., and R. C. Rowe. "Brittle/ductile behaviour in pharmaceutical materials used in tabletting." International Journal of Pharmaceutics 36, no. 2-3 (May 1987): 205–9. http://dx.doi.org/10.1016/0378-5173(87)90157-8.

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23

Zhao, Yishu. "Behaviour and criterion of quasi-brittle fracture of metals." Engineering Fracture Mechanics 39, no. 4 (January 1991): 683–86. http://dx.doi.org/10.1016/0013-7944(91)90218-p.

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24

Li, Chunlin. "Micromechanics modelling for stress-strain behaviour of brittle rocks." International Journal for Numerical and Analytical Methods in Geomechanics 19, no. 5 (May 1995): 331–44. http://dx.doi.org/10.1002/nag.1610190503.

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25

Bart, M., J. F. Shao, and D. Lydzba. "Poroelastic behaviour of saturated brittle rock with anisotropic damage." International Journal for Numerical and Analytical Methods in Geomechanics 24, no. 15 (2000): 1139–54. http://dx.doi.org/10.1002/1096-9853(20001225)24:15<1139::aid-nag114>3.0.co;2-3.

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26

Christensen, Richard M. "The ductile/brittle transition provides the critical test for materials failure theory." Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences 474, no. 2210 (February 2018): 20170817. http://dx.doi.org/10.1098/rspa.2017.0817.

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It is reasoned that any materials failure theory that claims generality must give full account of ductile versus brittle failure behaviour. Any such proposed theory especially must admit the capability to generate the ductile/brittle transition. A derivation of the failure surface orientations from a particular isotropic materials failure theory reveals that uniaxial tension has its ductile/brittle transition at T / C = 1/2, where T and C are the uniaxial strengths. Between this information and the corresponding ductile/brittle transition in uniaxial compression it becomes possible to derive t

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27

Woignier, Thierry, A. Hafidi Alaoui, Juan Primera, and J. Phalippou. "Mechanical Properties of Aerogels : Brittle or Plastic Solids?" Key Engineering Materials 391 (October 2008): 27–44. http://dx.doi.org/10.4028/www.scientific.net/kem.391.27.

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Different sets of silica aerogels (classical aerogels, partially dense aerogels, composite aerogels) have been studied in the objective to understand the mechanical behaviour of these extremely porous solids. The mechanical behaviour of xerogels and aerogels is generally described in terms of brittle and elastic materials, like glasses or ceramics. The main difference compared to silica glass is the order of magnitude of the elastic and rupture modulus which are 104 times lower. However, if this analogy is pertinent when gels are under a tension stress (bending test) they exhibit a more compli

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28

Teixeira, Pedro, Dulce Maria Rodrigues, and Altino Loureiro. "Modelling Local Brittle Zones in Welds Using the Finite Element Method." Materials Science Forum 514-516 (May 2006): 1419–23. http://dx.doi.org/10.4028/www.scientific.net/msf.514-516.1419.

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This paper reports the results of a numerical study concerning the influence of local brittle zones intersecting the crack front on the fracture behaviour of welded joints. This work was performed using the numerical simulation of the three point bending test of weld samples with different amount of brittle structures at the crack front. Using 3D finite element discretization it was possible to simulate welded samples with very small fractions of brittle zone at the crack front, such as 5 %. Comparing the results of samples with increasing proportion of brittle zone it was observed a significa

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29

Gardner, R., S. Piazolo, and N. Daczko. "Pinch and swell structures: evidence for brittle-viscous behaviour in the middle crust." Solid Earth Discussions 7, no. 2 (April 24, 2015): 1517–54. http://dx.doi.org/10.5194/sed-7-1517-2015.

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Abstract. The flow properties of middle to lower crustal rocks are commonly represented by viscous flow. However, examples of pinch and swell structures found in a mid-crustal high strain zone at St. Anne Point (Fiordland, New Zealand) suggest pinch and swell structures are initiated by brittle failure of the more competent layer in conjunction with material softening. On this basis we develop a flexible numerical model using brittle-viscous flow where Mohr–Coulomb failure is utilised to initiate pinch and swell structure development. Results show that pinch and swell structures develop in a c

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30

Khandavilli, Udaya B. Rao, Aoife M. Buckley, Anita R. Maguire, Mangalampalli S. R. N. Kiran, Upadrasta Ramamurty, and Simon E. Lawrence. "Epimers with distinct mechanical behaviours." CrystEngComm 23, no. 34 (2021): 5848–55. http://dx.doi.org/10.1039/d0ce01723j.

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31

Ray, Purusattam. "Statistical physics perspective of fracture in brittle and quasi-brittle materials." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 377, no. 2136 (November 26, 2018): 20170396. http://dx.doi.org/10.1098/rsta.2017.0396.

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We discuss the physics of fracture in terms of the statistical physics associated with the failure of elastic media under applied stresses in presence of quenched disorder. We show that the development and the propagation of fracture are largely determined by the strength of the disorder and the stress field around them. Disorder acts as nucleation centres for fracture. We discuss Griffith's law for a single crack-like defect as a source for fracture nucleation and subsequently consider two situations: (i) low disorder concentration of the defects, where the failure is determined by the extrem

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32

Herrmann, Christoph, Daniel Schneider, Ephraim Schoof, Felix Schwab, and Britta Nestler. "Phase-Field Model for the Simulation of Brittle-Anisotropic and Ductile Crack Propagation in Composite Materials." Materials 14, no. 17 (August 30, 2021): 4956. http://dx.doi.org/10.3390/ma14174956.

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In this work, a small-strain phase-field model is presented, which is able to predict crack propagation in systems with anisotropic brittle and ductile constituents. To model the anisotropic brittle crack propagation, an anisotropic critical energy release rate is used. The brittle constituents behave linear-elastically in a transversely isotropic manner. Ductile crack growth is realised by a special crack degradation function, depending on the accumulated plastic strain, which is calculated by following the J2-plasticity theory. The mechanical jump conditions are applied in solid-solid phase

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33

De Almeida, Olivier, Jean-François Ferrero, Laurent Escalé, and Gérard Bernhart. "Charpy test investigation of the influence of fabric weave and fibre nature on impact properties of PEEK-reinforced composites." Journal of Thermoplastic Composite Materials 32, no. 6 (June 4, 2018): 729–45. http://dx.doi.org/10.1177/0892705718778744.

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The aim of the work is to use Charpy impact test for quick evaluations of different Polyether-ether-ketone (PEEK)-reinforced composites to be used for impact protection. In the first part, the influence of weave pattern was first analysed by comparing the impact behaviour of three PEEK composites reinforced with plies of unidirectional (UD) tapes, 5H satin fabrics and 2 × 2 twill fabrics made of high-strength carbon fibres. In the second part, the influence of fibre nature was investigated for the same weave pattern. The impact behaviour of five 2 × 2 twill fabrics made from inorganic fibre (c

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34

Forquin, Pascal. "Brittle materials at high-loading rates: an open area of research." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 375, no. 2085 (January 28, 2017): 20160436. http://dx.doi.org/10.1098/rsta.2016.0436.

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Brittle materials are extensively used in many civil and military applications involving high-strain-rate loadings such as: blasting or percussive drilling of rocks, ballistic impact against ceramic armour or transparent windshields, plastic explosives used to damage or destroy concrete structures, soft or hard impacts against concrete structures and so on. With all of these applications, brittle materials are subjected to intense loadings characterized by medium to extremely high strain rates (few tens to several tens of thousands per second) leading to extreme and/or specific damage modes su

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35

Zhang, X. B., J. Li, and S. E. Boukha. "Modelling the failure behaviour of brittle or quasi-brittle materials by analysing the growth of micro-cracks." International Journal of Fracture 160, no. 1 (October 9, 2009): 73–83. http://dx.doi.org/10.1007/s10704-009-9412-x.

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36

Heard, P. J., and Peter E. J. Flewitt. "Study of Reticulated Vitreous Carbon Foam as a Quasi-Brittle Material." Key Engineering Materials 665 (September 2015): 229–32. http://dx.doi.org/10.4028/www.scientific.net/kem.665.229.

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Quasi-brittle materials are those where the addition of specific microstructural features such as porosity can lead to departure from linear elastic behaviour prior to maximum force, followed by graceful failure. A simple example of a quasi-brittle material is reticulated vitreous carbon foam; an open-cell structure consisting of brittle ligaments connected in a three-dimensional array. Tensile testing measurements have been made on foams with various pore and ligament dimensions; force - displacement combined with acoustic monitoring together with the evaluation of the associated elastic modu

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37

Atutis, Mantas, and Juozas Valivonis. "REINFORCEMENT CHARACTERISTICS OF PRESTRESSED CONCRETE BEAMS WITH FIBER-REINFORCED POLYMER (FRP) TENDONS." Engineering Structures and Technologies 2, no. 2 (June 30, 2010): 71–78. http://dx.doi.org/10.3846/skt.2010.10.

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The basic advantages of fiber-reinforced polymer (FRP) reinforcement are reviewed. FRP tendons exhibit linear elastic response to rupture without yielding and thus failure is expected to be brittle. Structural beahaviour of beams prestressed with FRP tendons is different from that of beams with traditional steel reinforcement. Strength design approach for prestressed beams with FRP tendons is based on the concept of brittle ratio, reinforcement ratio at which concrete fails in compression at the same time as FRP tendon ruptures. Depending on reinforcement ratio, the flexural behaviour of the b

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38

Kiehas, Florian, Anna Kalteis, Michael Jerabek, and Zoltán Major. "EXPERIMENTAL INVESTIGATION OF THE FAILURE BEHAVIOUR OF POLYPROPYLENE COMPOUNDS FOR INSTRUMENTED PUNCTURE TESTS." Acta Polytechnica CTU Proceedings 18 (October 23, 2018): 66. http://dx.doi.org/10.14311/app.2018.18.0066.

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Instrumented puncture tests according to ISO 6603-2 and ASTMD3763 were executed for five different Polypropylene compounds (talcum-, glass fibre- and elastomer modified) with specimen thicknesses ranging from 1mm to 4 mm. Over 1500 puncture tests were executed at the Impact &amp; Long-term Behaviour laboratory of the company Borealisr in Linz. This serves as strong foundation for statistical evaluations of the ductile/brittle transition temperature. For different materials and ductile/brittle transition determination methods, similar trends have been observed, which were characterized by i

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39

Sadowski, T., L. Marsavina, E. Craciun, and D. Pietras. "Description of Brittle Behaviour of Alumina/Zirconia 2 Phase Ceramics." IOP Conference Series: Materials Science and Engineering 416 (October 26, 2018): 012059. http://dx.doi.org/10.1088/1757-899x/416/1/012059.

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40

Xu, Tao, Chun-an Tang, Jian Zhao, Lianchong Li, and M. J. Heap. "Modelling the time-dependent rheological behaviour of heterogeneous brittle rocks." Geophysical Journal International 189, no. 3 (April 23, 2012): 1781–96. http://dx.doi.org/10.1111/j.1365-246x.2012.05460.x.

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41

Donzé, Frédéric, and Sophie-Adélaide Magnier. "Formulation of a 3-D numerical model of brittle behaviour." Geophysical Journal International 122, no. 3 (December 1995): 790–802. http://dx.doi.org/10.1111/j.1365-246x.1995.tb06838.x.

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42

Ebrahem, Firaz, Franz Bamer, and Bernd Markert. "Vitreous 2D silica under tension: From brittle to ductile behaviour." Materials Science and Engineering: A 780 (April 2020): 139189. http://dx.doi.org/10.1016/j.msea.2020.139189.

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43

Bansal, P., P. H. Shipway, and S. B. Leen. "Finite element modelling of the fracture behaviour of brittle coatings." Surface and Coatings Technology 200, no. 18-19 (May 2006): 5318–27. http://dx.doi.org/10.1016/j.surfcoat.2005.06.015.

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44

Michot, Gérard, and M. A Loyola de Oliveira. "Plastic Relaxation at Crack Tip: from Brittle to Ductile Behaviour." MATERIALS TRANSACTIONS 42, no. 1 (2001): 14–19. http://dx.doi.org/10.2320/matertrans.42.14.

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45

Liang, Chen, and Yu Yuan Zhao. "Quasi-Static and Impact Response of Graded Aluminium Matrix Syntactic Foams." Materials Science Forum 933 (October 2018): 246–55. http://dx.doi.org/10.4028/www.scientific.net/msf.933.246.

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The behaviour of aluminium matrix syntactic foams (AMSFs) with homogeneous and graded structures have been studied under quasi-static compression and impact. Particle size of ceramic microspheres and impact velocity had significant effects on the static and impact responses. Smaller microspheres led to higher strength but lower toughness. The compressive yield stress, plateau stress and specific energy absorption of the graded AMSF specimens were approximately the averages of the constituent layers, following the rule of mixture, although the order of the layers had some influence on the compr

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46

Sheng, C. H., M. Nagentrau, and N. H. Ibrahim. "Prediction of brittle fracture propagation behaviour of hydroxyapatite (HAp) coating in artificial femoral stem component." Archives of Materials Science and Engineering 114, no. 1 (March 1, 2022): 34–41. http://dx.doi.org/10.5604/01.3001.0015.9851.

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Purpose: This study addresses the brittle fracture propagation behaviour modelling of hydroxyapatite (HAp) coating in artificial femoral stem component. Design/methodology/approach: A simple two dimensional flat-on-flat contact configuration finite element model consisting contact pad (bone), Ti-6Al-4V substrate and HAp coating is employed in static simulation. The HAp coating is modelled as elastic layer with pre-microcrack which assumed to be initiated due to stress singularity. Findings: The study revealed that reducing coating thickness, pre-microcrack length and artificial femoral stem el

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47

Gunawan, Gunawan, and Amir Arifin. "INTERGRANULAR CORROSION AND DUCTILE-BRITTLE TRANSITION BEHAVIOUR IN MARTENSITIC STAINLESS STEEL." Indonesian Journal of Engineering and Science 2, no. 3 (September 8, 2021): 031–41. http://dx.doi.org/10.51630/ijes.v2i3.23.

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Material mechanical behavior is critical for both safety and economic considerations. Because engineering items are manufactured using appropriate grade materials, mechanical approval of the materials used must be completed before assembly. Petrochemicals, marine, and biomaterials are just a few of the industries that use stainless steel. Despite its extensive use, structural failure is still frequently caused by inadequate stainless steel type selection. As a result, dangerous conditions, resulting in personal harm or financial loss. Dangerous conditions is might result in accidents, resultin

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48

Jackson, G. A., Wei Sun, and D. Graham McCartney. "The Application of the Small Punch Tensile Test to Evaluate the Ductile to Brittle Transition of a Thermally Sprayed CoNiCrAlY Coating." Key Engineering Materials 734 (April 2017): 144–55. http://dx.doi.org/10.4028/www.scientific.net/kem.734.144.

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Thermally sprayed MCrAlY bond coats are important elements of thermal barrier coating (TBC) systems which are applied to the surface of gas turbine components to protect them in high temperature environments. Knowledge of their mechanical properties is essential in preventing TBC failure which can have catastrophic consequences. However, limited data on modulus, strength and ductility are available for such coatings. In this work, the ductile to brittle transition behaviour of a CoNiCrAlY coating has been investigated via the small punch tensile test (SPTT). Displacement controlled tests were

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49

Zhao, Gen Tian. "Seismic Behaviour on Composite Strengthening for Existing Reinforced Concrete Short Columns." Advanced Materials Research 194-196 (February 2011): 1986–89. http://dx.doi.org/10.4028/www.scientific.net/amr.194-196.1986.

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In order to develop an effective seismic shear strengthening method for improving the earthquake behavior of existing R/C short columns, experimental studies are conducted by using four beam-column sub assemblage specimens with a short column. Three short columns of these specimens are strengthening by steel plates and concrete, while other one is without any steel plate strengthening. All the specimens are tested under a constant gravity load and alternately repeated lateral forces. Test results demonstrate that, if the short column is strengthened by a welded square tube and concrete, then b

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50

Zhao, De Shen, Tao Xu, Chun An Tang, Hou Quan Zhang, and Zheng Zhao Liang. "Avalanche Behaviour in Microfracturing Process of 3-D Brittle Disordered Material." Key Engineering Materials 297-300 (November 2005): 2567–72. http://dx.doi.org/10.4028/www.scientific.net/kem.297-300.2567.

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Using a newly-developed Material Failure Process Analysis code (MFPA3D), the micro-fracturing process and the avalanche behavior characterization of brittle disordered materials such as rock or concrete is numerically studied under uniaxial compression and tension. It is found that, due to the heterogeneity of the disordered material, there is an avalanche behavior in the microcrack coalescence process. Meanwhile, a hierarchy of avalanche events also numerically observed though a study of numerically obtained acoustic emissions or seismic events. Numerical simulations indicate that macro-crack

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