Strain Gauge Test
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Behaviour of hollow circular section with multiple perforations under compression, flexure and torsion
Abstract Effect of the presence of perforations on thin structure has been extensively investigated for decades. Various perforation parameters were investigated in past studies. However, study on thin cylinder with multiple perforations has not been carried out. In searching for lighter structural members, the concept of perforated hollow section has been i
Lat. Am. j. solids struct.. Publicado em: 14/03/2019
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2. A comparative study of bulk-fill composites: degree of conversion, post-gel shrinkage and cytotoxicity
Abstract: Bulk-fill composites are claimed to be restorative materials used in deep preparations and effectively photoactivated in layers up to 4 mm. The aim of the present study was to evaluate the degree of conversion, post-gel volumetric shrinkage, and cytotoxicity of six bulk-fill and two conventional composites. Degree of conversion was determined by FT
Braz. oral res.. Publicado em: 08/03/2018
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3. Development and Evaluation of Calibration Procedure for a Force-Moment Balance Using Design of Experiments
Abstract To measure the aerodynamic and hydrodynamic forces and moments acting on scaled models in water and wind tunnel tests, multi-component strain gauge force and moment balance are usually used. Their performance and accuracy largely depends on the rig and calibration method, including the load table (design matrix) and analysis of experimental data. In
Lat. Am. j. solids struct.. Publicado em: 2016-01
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4. Strain analysis of different diameter Morse taper implants under overloading compressive conditions
The aim of this study was to evaluate the amount of deformation from compression caused by different diameters of Morse taper implants and the residual deformation after load removal. Thirty Morse taper implants lacking external threads were divided into 3 groups (n = 10) according to their diameter as follows: 3.5 mm, 4.0 mm and 5.0 mm. Two-piece abutments
Braz. oral res.. Publicado em: 23/01/2015
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5. Effects of threaded post placement on strain and stress distribution of endodontically treated teeth
The aim of this study was to evaluate the effect of parallel and tapered threaded post placement on the strain and stress distribution of endodontically treated teeth. Fifteen bovine incisors were sectioned 15 mm from their apices, endodontically treated, and divided into three groups (n = 5) according to three di
Braz. oral res.. Publicado em: 2013-07
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6. Influência do material restaurador, lesão cervical e tipo de carregamento no comportamento biomecânico de pré-molar superior
Este trabalho objetivou avaliar a influência dos materiais restauradores, associado a presença de lesões cervicais na distribuição de tensões e deformações em pré-molares superiores tratados endodonticamente por meio de Análise por Elementos Finitos (FEA) e Técnica de extensometria. Para análise de Elementos Finitos, 12 modelos virtuais 3D de pr�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012
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7. Effect of axial loads on implant-supported partial fixed prostheses by strain gauge analysis
OBJECTIVES: The present study used strain gauge analysis to perform an in vitro evaluation of the effect of axial loading on 3 elements of implant-supported partial fixed prostheses, varying the type of prosthetic cylinder and the loading points. MATERIAL AND METHODS: Three internal hexagon implants were linearly embedded in a polyurethane block. Microunit a
Journal of Applied Oral Science. Publicado em: 2011-12
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8. Machined and plastic copings in three-element prostheses with different types of implantabutment joints: a strain gauge comparative analysis
OBJECTIVE: Using strain gauge (SG) analysis, the aim of this in vitro study was quantify the strain development during the fixation of three-unit screw implant-supported fixed partial dentures, varying the types of implant-abutment joints and the type of prosthetic coping. The hypotheses were that the type of hexagonal connection would generate different mic
Journal of Applied Oral Science. Publicado em: 2010-06
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9. Influência do tipo de retentor intra-radicular e da radioterapia na deformação, resistência e padrão de fratura de diferentes dentes tratados endodonticamente
The aim of this in vitro study was to evaluate the influence of post type and the radiotherapy effect on strain, fracture resistance and fracture pattern for different teeth endodontically treated. 160 human teeth were selected (n=40): In, incisives; Ca, canines; Pm, pre-molar e Mo, molars. After the endodontically treatment, half of samples (n=20) was subje
Publicado em: 2009
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10. Preload and torque removal evaluation of three different abutment screws for single standing implant restorations
Several authors still consider the mechanical problems of fracture and component loosening as the main causes of failure of implant-supported restorations. The purpose of this in vitro study was to compare the preload of three types of screw for transmucosal abutment attachment used in single implant-supported prosthesis through strain gauge and removal torq
Journal of Applied Oral Science. Publicado em: 2008-02
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11. Effect of light-curing units and activation mode on polymerization shrinkage and shrinkage stress of composite resins
The aim of this study was to evaluate the polymerization shrinkage and shrinkage stress of composites polymerized with a LED and a quartz tungsten halogen (QTH) light sources. The LED was used in a conventional mode (CM) and the QTH was used in both conventional and pulse-delay modes (PD). The composite resins used were Z100, A110, SureFil and Bisfil 2B (che
Journal of Applied Oral Science. Publicado em: 2008-02
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12. Analise do complexo tensão-deformação e mecanismo de falha de pre-molares superiores com diferentes morfologias radiculares e redução sequencial de estrutura dental / Analysis of stress-strain complex and failure mecanism for maxilary premolars with different root morphology and sequential loss of dental structure
The aim of this work was to evaluate the biomechanical behavior of restored maxillary human premolar throughout stress-strain, stress distribtion analysis and fracture resistance with different root morphologies and the cavity preparation design. Forty maxillary premolars with similar coronary dimensions were selected and divided into 4 morphology categories
Publicado em: 2008