نتایج جستجو برای: the flexural modulus and strength of glass fiber

تعداد نتایج: 25042283  

2014
Rodrigo Borges Fonseca Marcella Silva de Paula Isabella Negro Favarão Amanda Vessoni Barbosa Kasuya Letícia Nunes de Almeida Gustavo Adolfo Martins Mendes Hugo Lemes Carlo

This study evaluated the influence of silane heat treatment and glass fiber fabrication type, industrially treated (I) or pure (P), on flexural and compressive strength of methacrylate resin bars (BISGMA/TEGDMA, 50/50%). Six groups (n = 10) were created: I-sil: I/silanated; P-sil: P-silanated; I-sil/heat: I/silanated heated to 100°; P-sil/heat: P/silanated heated to 100°; (I: I/not silanated; a...

2016
Sevda Boran

Effects of nutshell fiber loadings of 30 wt.% and MCC loadings up to 15 wt.% on some properties of high-density polyethylene composites (HDPE) were investigated. The composites were manufactured by a single screw extruder and injection molding. The experimental composite samples were tested for their mechanical performance including tensile strength, tensile modulus, flexural strength, flexural...

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Background and Aim: graphene is a two-dimensional nanostructure consist of a single layer of SP2 carbon atoms that arranged by covalent bonds in a hexagonal bee web. The reinforcement by GO is due to functional groups that lead to strong interaction, dispersion and stress distribution. Due to lower mechanical properties and strength of PEMA than PMMA, we evaluate effect of GO on mechanical prop...

2001

A Portland cement plaster wall system has many positive features, but one of the physical properties that it does not possess is flexural strength. It is because of the inability of the Portland cement plaster membrane to bend or flex that glass fiber strands were used in Portland cementbased plaster. There are various types of synthetic fibers on the market that will provide flexural strength ...

Journal: :journal of dentistry, tehran university of medical sciences 0
sara tavassoli-hojjati department of pediatric dentistry, dental school, shahed university, tehran, iran. mohammad atai iran polymer and petrochemical institute (ippi), tehran, iran. roza haghgoo department of pediatric dentistry, dental school, shahed university, tehran, iran. sara rahimian-imam department of pediatric dentistry, dental school, zahedan university of medical sciences, zahedan, iran. somayeh kameli department of pediatric dentistry, dental school, shahed university, tehran, iran. fatemeh ahmaian-babaki department of pediatric dentistry, dental school, shahid beheshti university of medical sciences, tehran, iran.

the aim of this study was to investigate the mechanical properties (flexural strength, micro-shear bond strength) and remineralizing potential of fissure sealants by adding various concentrations of β-tricalcium phosphate nanoparticles.this in-vitro study consisted of five experimental groups containing prepared nano-fisssure sealants (1-5 wt.% β-tcp nanoparticles) and two control groups contai...

Journal: :Reviews on Advanced Materials Science 2023

Abstract The development of hybrid composite materials using honeycomb structure, typically a lightweight material, is commonly used in aircraft structures. However, the use with natural or synthetic remains unexplored literature. Therefore, this study aims to partially replace fiber, woven glass fiber kenaf and core. An experimental analysis investigated mechanical strength three different com...

2014
Taher M. Abu-Lebdeh Ellie Fini Monique Lumpkin

The purpose of this research was to experimentally characterize the flexural and tensile characteristics of fiber-reinforced Very High-Strength Concrete (VHSC) panels. The panels were made with a unique mix of cementitous materials achieving compressive strength of 26,000 psi (180 MPa) or greater. VHSC panels were reinforced with polypropylene fibers of 1 inch (25.4 mm) in length and Polyvinyl ...

In this article, the effect of hygrothermal aging on mechanical properties of fiber metal laminates (FMLs) and E-glass/epoxy (GE) composites is investigated. First, FML and GE specimens were built using wet lay-up technique under vacuum pressure. Hygrothermal aging simulation was then carried out on both specimen types in distilled water at a constant temperature of 90 °C for 5 weeks. The resul...

C. B. K. Rao N. R. Dakshina Murthy S. R. R. Teja Prathipati,

Brittleness, which was the inherent weakness in High Strength Concrete (HSC), can be avoided by reinforcing the concrete with discontinuous fibers. Reinforcing HSC with more than one fiber is advantageous in an overall improvement of the mechanical performance of the composite. In this experimental study, Hybrid Fiber Reinforced High Strength Concrete (HyFR-HSC) mixes were formed by blending si...

2015
Rodrigo Borges Fonseca Amanda Vessoni Barbosa Kasuya Isabella Negro Favarão Lucas Zago Naves Márcio Grama Hoeppner

The aim of this study was to evaluate the flexural strength of acrylic resin bars by varying the types of resin polymerization and reinforcement methods. Fourteen groups (N=10) were created by the interaction of factors in study: type of resin (self-cured (SC) or heat-cured (HC)) and reinforcement method (industrialized glass fiber (Ind), unidirectional glass fiber (Uni), short glass fiber (Sho...

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