Drilling Strength
Mostrando 1-12 de 24 artigos, teses e dissertações.
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1. Obtaining geotechnical parameters from correlations between geophysics and CPT tests in tailings dams
Abstract This article introduces a hassle-free methodology for geotechnical parameters to be obtained from correlations between geophysics and CPT field tests in tailings dams undergoing the decommissioning process, which are reasonably representative of site conditions, from the very early project stages, with extensive coverage of all impoundment parts, wi
REM, Int. Eng. J.. Publicado em: 2020-12
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2. Composite floor system with CFS trussed beams, concrete slab and innovative shear connectors
Abstract Steel and concrete floor systems are widely applied for buildings and provide excellent structural response, optimized material consumption, reduced beam height, and improved bending strength and stiffness capacity. In recent years, many experimental investigations concerned with new alternatives addressed to efficient interaction between steel and
REM, Int. Eng. J.. Publicado em: 2020-03
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3. Treatment of Anterior Cruciate Ligament Injuries in Professional Soccer Players by Orthopedic Surgeons
Resumo Objetivo Descrever o tratamento realizado por especialistas das lesões do ligamento cruzado anterior (LCA) em jogadores profissionais de futebol. Métodos Estudo transversal, no qual ortopedistas vinculados a clubes participantes do Campeonato Brasileiro de Futebol responderam a um questionário sobre o tratamento das lesões do LCA em jogadores pr
Rev. bras. ortop.. Publicado em: 13/12/2019
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4. Impacto nas Propriedades Mecânicas e Tensões Residuais do Material ASTM A572 Grau 50 Soldado por Arco Submerso com Alívio de Tensões Térmico
Resumo O aço ASTM A572 Grau 50 é utilizado na fabricação de conjuntos soldados para aerogeradores, por este motivo, a realização de alívio de tensões é de grande importância para correção dos impactos causados pelos processos de soldagem, bem como, o conhecimento das propriedades finais obtidas com a realização deste processo. O objetivo desse
Soldag. insp.. Publicado em: 02/12/2019
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5. Determination of Drilling Rate Index Based on Rock Strength Using Regression Analysis
Abstract: Drillability is influenced by many factors, including machine parameters and rock properties. The main machine parameters for drilling include rotational speed, thrust force, torque and flush pressure. The specific rock characteristics that affect penetration rate comprise uniaxial compressive strength (UCS), tensile strength, Young’s modulus, ha
An. Acad. Bras. Ciênc.. Publicado em: 14/10/2019
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6. Experimental analysis of built-up cold-formed steel lipped channel stub column
Abstract This article reports the results of experimental tests conducted on built-up cold-formed steel (CFS) stub columns, composed of double lipped channel members connected with self-drilling screws, which will be applied as the chord members of laced columns. These experiments aim to quantify the effect of four distinct web fastener layouts on the compos
REM, Int. Eng. J.. Publicado em: 16/09/2019
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7. Fatigue failure analysis of HSLA steel sheets holed by conventional and flow drilling processes
RESUMO O processo de furação por escoamento produz buchas para uniões removíveis que podem ser roscadas pelo processo de rosqueamento por conformação, reduzindo etapas da produção de componentes da indústria automobilística e em galpões da construção civil. Aços de alta resistência e baixa liga (ARBL) são empregados em variadas aplicações n
Matéria (Rio J.). Publicado em: 16/09/2019
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8. Fatigue failure analysis of HSLA steel sheets holed by conventional and flow drilling processes
ABSTRACT Flow drilling process produces bushes for removable joints that can be threaded by forming tapping process, reducing stages in production of components of automobile industry and in construction sheds. High strength and low alloy steels (HSLA) are employed on several applications in the processing industry. Benefits provided by these materials make
Matéria (Rio J.). Publicado em: 10/06/2019
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9. Experimental Tests on Bending Behavior of Profiled Steel Sheeting Dry Board Composite Floor with Geopolymer Concrete Infill
Abstract Profiled Steel Sheet Dry Board (PSSDB) system is a lightweight composite structure comprises Profiled Steel Sheeting and Dry Board connected by self-drilling and self-tapping screws. This study introduced geopolymer concrete, an eco-friendly material without cement content as an infill material in the PSSDB floor system to highlight its effect onto
Lat. Am. j. solids struct.. Publicado em: 2016-02
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10. Is miniscrew primary stability influenced by bone density?
Primary stability is absence of mobility in the bone bed after mini-implant placement and depends on bone quality among other factors. Bone quality is a subjective term frequently considered as bone density. The aim of this preliminary study was to evaluate bone density in two bovine pelvic regions and verify the primary stability of miniscrews inserted into
Brazilian Oral Research. Publicado em: 2011-10
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11. Influence of EP additive on tool wear in drilling of compacted graphite iron
Compacted Graphite Iron (CGI) is a good option for the manufacturing of engine blocks, because of the possibilities to decrease the wall thickness and to operate at higher pressures. However, due to its greater tensile strength and hardness compared with grey cast iron, the pearlitic CGI structure makes its machining more difficult. Thus, the aim of this pap
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2011-06
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12. Adição de cascalho de perfuração da bacia potiguar em argilas para uso em materiais cerâmicos: influência da concentração e temperatura de queima.
One of waste produced on large scale during the well drilling is the gravel drilling. There are techniques for the treatment of the same, but there isnt consensus on what are the best in terms of economic and environmental. One alternative for disposal of this waste and objective of this paper is the incorporation and immobilization of gravel clay matrix to
Publicado em: 2010