Mode I fracture analysis of the double edge cracked Brazilian disk using a weight function method

F, Chen; Sun, Zhibin; Xu, Jin-Quan

doi:10.1016/s1365-1609(01)00008-9

Cited by 43 publications

(17 citation statements)

References 7 publications

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“…This geometry has been recently proposed by CHEN et al (2001) for mode I fracture toughness testing. The specimen and loading configuration is as shown in Figure 7(a).…”

Section: Geometry Related To Ccnbd: 3-double-edge Cracked Brazilian Dmentioning

confidence: 99%

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An Update on the Fracture Toughness Testing Methods Related to the Cracked Chevron-notched Brazilian Disk (CCNBD) Specimen

Fowell

Dowd

2006

Pure appl. geophys.

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This paper reviews the use of the cracked Chevron-notched Brazilian disc (CCNBD) for fracture toughness testing. Theoretical and experimental backgrounds of the method are described. Some issues regarding the current development (i.e., recalibration) of the specimen geometry are presented and discussed. A number of geometries related to the CCNBD proposed recently for fracture toughness testing of rock are then introduced and commented on.

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“…This geometry has been recently proposed by CHEN et al (2001) for mode I fracture toughness testing. The specimen and loading configuration is as shown in Figure 7(a).…”

Section: Geometry Related To Ccnbd: 3-double-edge Cracked Brazilian Dmentioning

confidence: 99%

“…The specimen and loading configuration is as shown in Figure 7(a). The specimen is studied in CHEN et al (2001) using a weight function and the FEM method. The dimensionless mode I SIF for the specimen for different crack inclination angles is given in Figure 7 (b).…”

Section: Geometry Related To Ccnbd: 3-double-edge Cracked Brazilian Dmentioning

confidence: 99%

An Update on the Fracture Toughness Testing Methods Related to the Cracked Chevron-notched Brazilian Disk (CCNBD) Specimen

Fowell

Dowd

2006

Pure appl. geophys.

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“…The loss on ignition (LOI) is relatively high (9.78 wt.%), and is related mainly with the presence of organic matter. The chemical composition of the SCBA waste used in this work, as shown in Table II, is different from the others found in the literature [14][15][16][17]. This can be explained in terms of the different soils in which sugarcane grow, fertilization method, and soil management.…”

Section: Resultsmentioning

confidence: 60%

“…The water absorption values were determined from the weight differences between the as fired and water saturated pieces (immersion in boiling water for 2 h). The tensile strength of the fired pieces obtained by the diametral compressive method [14] was determined by using a universal testing machine (model 5582, Instron). The crossbar speed was hold at 0.5 mm/min for all tests.…”

Section: Methodsmentioning

confidence: 99%

Incorporation of sugarcane bagasse ash waste as an alternative raw material for red ceramic

Faria

Holanda

2013

Cerâmica

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The sugarcane industry generates huge amounts of sugarcane bagasse ashes (SCBA). This work investigates the incorporation of a SCBA waste as an alternative raw material into a clay body, replacing natural clay material by up to 20 wt.%. Clay ceramic pieces were produced by uniaxial pressing and fired at temperatures varying from 700 to 1100 ºC. The technological properties of the clay ceramic pieces (linear shrinkage, apparent density, water absorption, and tensile strength) as function of the firing temperature and waste addition are investigated. The phase evolution during firing was followed by X-ray diffraction. The results showed that the SCBA waste could be incorporated into red ceramics (bricks and roofing tiles) in partial replacement for natural clay material. These results confirm the feasibility of valorisation of SCBA waste to produce red ceramic. This use of SCBA can also contribute greatly to reducing the environmental problems of the sugarcane industry, and also save the sources of natural raw materials used in the ceramic industry.

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“…A absorção de água, massa específica aparente e a porosidade aparente das peças cerâmicas foram obtidas de acordo com procedimentos padronizados ASTM 373 [9]. A resistência à compressão diametral foi determinada com o auxílio de uma máquina de ensaios universal (EMIC, modelo DL100/100kN) com velocidades de carregamento de 0,5 mm/min de acordo com a expressão [10,11]:…”

Section: Massaunclassified

Influência da adição de resíduo de cinzas de bagaço de cana-de-açúcar nas propriedades tecnológicas de cerâmica vermelha

2012

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RESUMOO Brasil é o maior produtor mundial de açúcar e álcool proveniente de cana-de-açúcar. A indústria da canade-açúcar tem contribuído para o fortalecimento do agronegócio, desenvolvimento econômico e social do país. No entanto, o processo produtivo da indústria de cana-de-açúcar gera enormes quantidades de resíduos sólidos na forma de cinzas. Estes resíduos sólidos são de difícil disposição final e podem gerar problemas de poluição ambiental. Por esse motivo, devem-se buscar novas alternativas tecnológicas viáveis para o reuso ou reciclagem destes abundantes resíduos. Este trabalho tem como objetivo utilizar o resíduo de cinzas de bagaço de cana-de-açúcar como uma matéria-prima alternativa de baixo custo em mistura com argila caulinítica para obtenção de cerâmica vermelha. Foram estudadas cinco formulações com 0, 5, 10, 15 e 20 % em peso de resíduo de bagaço de cana-de-açúcar misturado com argila caulinítica. As peças cerâmicas foram preparadas por prensagem uniaxial e sinterizadas a 1000 ºC (24 h frio a frio). As peças sinterizadas foram caracterizadas em termos de retração linear, absorção de água, massa específica aparente, porosidade aparente e resistência à compressão. Ficou comprovado, após resultados dos ensaios realizados, que a incorporação de resíduos de cinzas de bagaço de cana-de-açúcar afeta significativamente as propriedades tecnológicas de cerâmica vermelha. Portanto, o resíduo de cinzas de bagaço de cana-de-açúcar pode ser usado como uma matéria-prima alternativa de baixo custo em cerâmica vermelha, desde que seja adicionado em quantidades moderadas.Palavras-chave: Cinzas, Bagaço de Cana-de-Açúcar, Cerâmica Vermelha, Reciclagem. ABSTRACTBrazil is the world's largest producer of sugar and ethanol from sugarcane. The sugarcane industry has contributed to the strengthening of agribusiness, as well as economic and social development of the country. However, the production process of the sugarcane industry generates huge amounts of solid wastes in the form of ashes. These solid wastes have difficult disposal and can lead to problems of environmental pollution. Therefore, one should look for new alternative technologies viable for reuse or recycling of these abundant wastes. The essay's goal is to evaluate the use of sugarcane bagasse ash waste as a low cost alternative raw material mixed with clay for production of red ceramic. Five formulations were studied with 0, 5, 10, 15 and 20 wt.% of waste mixed with kaolinitic clay. Ceramic pieces were prepared by uniaxial pressing and sintered at 1000 °C (24 cold cold). The pieces were characterized in terms of linear shrinkage, water absorption, apparent density, apparent porosity and compressive strength. It was proven, after results of tests performed, the incorporation of sugarcane bagasse ash waste significantly affects the technological properties of red ceramic. Therefore, the sugarcane bagasse ash waste can be used as an alternative raw material in red ceramic, since it is added in moderate amounts.

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Mode I fracture analysis of the double edge cracked Brazilian disk using a weight function method

Cited by 43 publications

References 7 publications

An Update on the Fracture Toughness Testing Methods Related to the Cracked Chevron-notched Brazilian Disk (CCNBD) Specimen

An Update on the Fracture Toughness Testing Methods Related to the Cracked Chevron-notched Brazilian Disk (CCNBD) Specimen

Incorporation of sugarcane bagasse ash waste as an alternative raw material for red ceramic

Influência da adição de resíduo de cinzas de bagaço de cana-de-açúcar nas propriedades tecnológicas de cerâmica vermelha

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