Geometry Compression
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. BIOMECHANICS OF BONE BLOCK GRAFT MODELS OF DIFFERENT GEOMETRY
RESUMO Objetivo: Avaliar o comportamento mecânico de enxertos ósseos em blocos com geometrias diferentes usando modelos de madeira. Métodos: Montagens com “enxertos” de perfil retangular (G1) e trapezoidal (G2), fixadas com placas de compressão dinâmica de 3,5 mm e oito orifícios, foram submetidas a ensaios não destrutivos de flexão, com a carg
Acta ortop. bras.. Publicado em: 30/05/2019
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2. Experimental and numerical evaluation of mortar specimens shape and size influence on compression tests
Resumo A resistência à compressão axial de compostos cimentícios é um parâmetro importante para classificação, aferição de qualidade e dimensionamento desses materiais. Os valores obtidos nos ensaios são diretamente influenciados pelas propriedades intrínsecas dos compostos e por fatores externos, como dimensão e forma dos corpos de prova. O pre
Rev. IBRACON Estrut. Mater.. Publicado em: 20/05/2019
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3. Experimental analysis of load capacity in beams with steel fiber reinforcement on the compression face
Resumo A utilização de fibras de aço no concreto visa aumentar principalmente a tenacidade, em função da aderência das fibras à matriz cimentícia. Entretanto como existem diversas tipologias de fibras de aço, as principais diferenças estão no fator de forma (relação entre comprimento e diâmetro), na geometria das fibras, e, na caracterização
Rev. IBRACON Estrut. Mater.. Publicado em: 2019-02
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4. Experimental Evaluation of Low-Pass Shock Isolation Performance of Elastomers Using Frequency-Based Kolsky Bar Analyses
Abstract Elastomeric materials are used as shock isolation materials in a variety of environments to dampen vibrations and/or absorb energy from external impact for minimizing energy transfer between two objects or bodies. Some applications require the shock isolation materials to behave as a low-pass mechanical filter to mitigate the shock/impact at high fr
Lat. Am. j. solids struct.. Publicado em: 2017-03
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5. Direct-write assembly of 3D scaffolds using colloidal calcium phosphates inks
Additive manufacture techniques using concentrated colloidal inks are a promising approach for creating three-dimensional (3D) calcium phosphates scaffolds for bone repair and regeneration. Among those, the direct-write assembly allows building scaffolds with precise size and geometry. In the present work, commercial β-TCP and HA were used to produce two t
Matéria (Rio J.). Publicado em: 2014-03
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6. An effective thickness proposal for strength evaluation of one-side pitted steel plates under uniaxial compression
This paper presents the results of an investigation into the post-buckling behaviour and ultimate strength of imperfect pitted steel plates used in ship and other marine-related structures. A series of elastic-plastic large deflection finite element analyses is performed on pitted steel plates. The effects of pitting corrosion on one side of the plates are i
Lat. Am. j. solids struct.. Publicado em: 2012-08
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7. Estudo do ensaio de determinação da tenacidade à fratura em deformação plana (KIc) em PMMA e análise das tensões desenvolvidas por fotoelasticidade. / Study of test for determining fracture toughness in plane strain (KIc) in PMMA and stress analysis developed by photoelasticity.
Single-Edge-Notch Bending samples produced out of compression-molded plates obtained from a commercial Poly(methyl metacrylate), PMMA, resin were investigated concerning the influence of the adopted pre-cracking methodology on plane strain fracture toughness results according to ASTM D 5045 standard. Two sets of 6 samples each were pre-cracked using a sharp-
Publicado em: 2010
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8. The influence of die geometry on stress distribution by experimental and FEM simulation on electrolytic copper wiredrawing
The study of die geometry is vital in determining the surface and mechanical properties of drawn wires, and consequently, their application. In this work, annealed electrolytic copper wire (ETP), with 0.5 mm original diameter was reduced by 19% in dies with 2β = 10º and 18º and Hc = 35 and 50%. The best experimental results were then studied by the Finite
Materials Research. Publicado em: 2009-09
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9. ESTUDO DO COMPORTAMENTO MECÂNICO DE BLOCOS CERÂMICOS COM DIFERENTES LARGURAS / STUDY OF THE MECHANICAL BEHAVIOR CERAMIC BLOCKS OF DIFFERENT THICKNESS
The main goal of this project is comparing the performance of structural ceramic blocks with 11,5 (Block A) e 14 (Block B) centimeters thickness, through tests with blocks, prisms and small walls using two types of mortar, ii and iii, determined by the British Norm (BS-5628) developed in laboratory. The experimental program includes simple axial units compre
Publicado em: 2009
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10. Aspectos de física estatística na evolução e no crescimento molecular. / Aspects of statistical physics on evolution and in molecular growth.
Molecular Evolution, stimulated and supported by Evolution Synthetic Theory, became essential to understand evolution of life. Genomic growth was responsible to increase the capacity of storage information and to stability of the molecule; besides, it was also submitted to natural selection. Using amplification-mutation-selection methodology, such as SELEX (
Publicado em: 2009
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11. Caracterização de junta soldada por atrito linear com mistura (FSW) da liga Al-Mg-Si AA 6063. / Friction stir welded joint characterization of 6063 aluminum alloy.
Friction Stir Welding process arose from a desire to apply the principles and benefits of traditional solid state friction welding friction in non axi-symmetric geometries. Thus, it was added a traveling speed and a special rotating tool that allows welding aluminum alloys with bad weldability. The key factor to have a linear friction welding with sound bead
Publicado em: 2009
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12. Evaluation of nasal guard for sports activities: finite element analysis [ / Avaliação de protetor nasal para atividades desportivas: análise por elementos finitos
In recent years there has been an increase in the number of facial fractures in sports activities. As the nasal bone is in the weakness zone of the face, is one of the most affected by sports accidents. One of the solutions to avoid fracture or refracture is to use a nose guard when practicing sports. Up to date there is no standardization in relation to the
Publicado em: 2009