Search Results - "Lahr, Francisco Antônio Rocco"
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Tropical wood species: alternative model to determine the characteristic compressive strength perpendicular to grain
Published in Southern forests (02-01-2023)“…Brazil has a vast area of native forests with the potential to be sustainably exploited for application in civil construction. Density is a key factor when…”
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Biological resistance of sandwich particleboard made with sugarcane, thermally-treated Pinus wood and malva fiber
Published in Journal of wood chemistry and technology (05-05-2022)“…Particleboards produced with other lignocellulosic materials, beyond wood, are promising products for the furniture and building construction components, as…”
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Particleboards from CCB-Treated Pinus sp. Wastes and Castor Oil Resin: Morphology Analyses and Physical–Mechanical Properties
Published in Journal of materials in civil engineering (01-11-2019)“…AbstractThis work evaluated the use of Pinus sp. wastes treated with a chromium, copper and boron compound (CCB), a wood preservative, to fabricate…”
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Eucalyptus-Based Glued Laminated Timber: Evaluation and Prediction of Its Properties by Non-Destructive Techniques
Published in Forests (01-09-2024)“…Eucalyptus-based glued laminated timber (glulam) was produced to determine the feasibility of a non-destructive method (drilling resistance) to predict the…”
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Influence of mean value of the modulus of elasticity in compression parallel to the grain on the design of timber trusses
Published in Acta scientiarum. Technology (01-01-2023)“…The Brazilian standard ABNT NBR 7190 (Associação Brasileira de Normas Técnicas [ABNT], 1997) recommends adopting the mean value of the modulus of elasticity to…”
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Experimental study on full-scale glulam beams manufactured with Eucalyptus urograndis
Published in Maderas (01-01-2023)“…Engineered wood products need alternatives of raw materials to their production. The hybrid Eucalyptus urograndis has great potential to supply the demand of…”
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Influence of specimen orientation on determination of elesticity in static bending
Published in Maderas (2015)“…Wood is a natural material and so many factors interfere in estimation of its physical and mechanical properties. Consequently variability in properties should…”
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Influence of harvest region on properties of Cambará wood
Published in Maderas (01-01-2021)“…This research intends to evaluate the relation, aided by the Brazilian Standard and statistical analysis (Kruskal-Wallis ANOVA and bootstrap technique),…”
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NUMERICAL ANALYSIS OF HARDWOOD TIMBER BEAMS REINFORCED WITH STEEL PLATE SCREWED
Published in Revista árvore (01-01-2022)“…ABSTRACT There are several technologies to recover and strengthen timber structures. Two usual alternatives are: the use of steel plates screwed and carbon…”
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Estimation model of mechanical properties from the compressive strength values
Published in Maderas (01-10-2020)“…To ensure the safety of wooden structures, estimation of wood strength is based on the characteristic strength values. The Brazilian standard (NBR, in…”
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Hybrid Sandwich Particleboard Made with Sugarcane, Pínus Taeda Thermally Treated and Malva Fibre from Amazon
Published in Materials research (São Carlos, São Paulo, Brazil) (01-01-2018)“…A multilayer particleboard panels, consisted of sugarcane bagasse reinforced composite as core material and hybrid composites made with Pinus taeda particles…”
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Alternative model to determine the characteristic strength value of wood in the compression parallel to the grain
Published in Maderas (2020)“…Wood strength values are calculated based on the characteristic value, which corresponds to the 5 % percentile of a given probability distribution model. For a…”
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13
Influence of Test Method on the Determination of Tensile Strength Perpendicular to Grain of Timber for Civil Construction
Published in Materials (13-09-2024)“…Tensile perpendicular to grain is an important mechanical property in the design of joints in timber structures. However, according to the standards, this…”
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14
Physical-mechanical properties of Cajueiro wood estimated by non-destructive methods based on apparent density and natural vibration frequency
Published in Ciência florestal (24-11-2023)“…ABSTRACT Wood has several properties that make it attractive when compared to other materials, however, for its use, it is necessary to know the values of…”
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Life cycle assessment of a hot-pressing machine to manufacture particleboards: hotspots, environmental indicators, and solutions
Published in The international journal of life cycle assessment (01-06-2020)“…Purpose Green manufacturing (GM) is the environmental benign manufacturing of products with a minimal negative impact on the natural environment. Research…”
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Influence of a biological soaking in the presence of microbes on the tensile strength of açaí fibers
Published in Bioresources (01-05-2023)“…In order to contribute to the dissemination of lignocellulosic residues in the composite materials manufacturing, this study aimed to investigate the influence…”
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Life cycle assessment of medium density particleboard (MDP) produced in Brazil
Published in The international journal of life cycle assessment (01-08-2013)“…Purpose The wood panel industry is one of the most important forest-based industries in Brazil. The medium density particleboard (MDP) is currently produced…”
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Influence of Pressing Temperatures on Physical–Mechanical Properties of Wood Particleboards Made with Urea-Formaldehyde Adhesive Containing Al2O3 and CuO Nanoparticles
Published in Polymers (11-06-2024)“…Particleboards have gained attention in the global market. Understanding their physical–mechanical behavior in the current technological context is essential…”
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Relationship between characteristic values of shear strength parallel to grain and tensile strength perpendicular to grain for tropical woods
Published in Bioresources (01-11-2024)“…Wood, due to its complex anatomy, requires meticulous characterization that imposes several tests to be carried out to evaluate its properties. Normative codes…”
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Residual Mechanical Properties and Durability of High-Strength Concrete with Polypropylene Fibers in High Temperatures
Published in Materials (05-07-2022)“…Investigations into the fire resistance of high-strength concrete (HSC) is extremely important to optimize structural design in construction engineering. This…”
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