Results 41 to 50 of about 173,051 (269)

Coniform-shape tool for splitting of wooden logs

open access: yesResearch in Agricultural Engineering, 2015
The article deals with design of a coniform tool with rotary motion for splitting of logs. The tool is proposed using a fracture mechanics theory. The approach of energy balance during crack growth in a split wood log is applied for construction design ...
F. Bodnár, M. Minárik
doaj   +1 more source

Characterization of Aluminized Layers on Inconel‐738 Alloy: Microstructure, Modeling of Aluminizing Kinetics, and Thermal Behavior

open access: yesAdvanced Engineering Materials, EarlyView.
This study explored how effective nickel aluminide coatings are obtained in providing oxidation resistance applied to the Inconel 738 alloy, modeling with diffusion models. In the present study, kinetics and thermal behavior of the Inconel 738 alloy were studied by the low‐temperature thermoreactive aluminizing process, which was carried out at 625°C ...
Gozde Celebi Efe   +4 more
wiley   +1 more source

Application of the strain energy density criterion to ductile fracture [PDF]

open access: yes, 1985
The strain energy density criterion due to Sih is used to predict fracture loads of two thin plates subjected to large elastic-plastic deformation. The prediction is achieved with a finite element analysis which is based on Hill's variational principle ...
Chow CL, 徐纪林
core   +1 more source

Mechanical Properties and Reproducibility of One-Part Ambient-Cured Slag and Fly Ash-Based Geopolymer Concrete

open access: yesBuildings
The cement industry is a major source of anthropogenic CO2 emissions due to its energy-intensive production process and calcination of limestone. Producing one ton of cement emits approximately one ton of CO2, and cement accounts for about 5% to 8% of ...
Daro Sun   +3 more
doaj   +1 more source

Mechanical Properties of Concrete with Steel and Polypropylene Fibres at Elevated Temperatures

open access: yesFibers, 2019
Addition of steel fibres to concrete is known to have a significant positive influence on the mechanical properties of concrete. Micro polypropylene (PP) fibres are added to concrete to improve its performance under thermal loads such as in case of fire ...
Josipa Bošnjak   +2 more
doaj   +1 more source

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

open access: yesAdvanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira   +4 more
wiley   +1 more source

Moiré interferometry applied to fracture in titanium tubes [PDF]

open access: yes, 2007
Despite there being a substantial body of evidence to the contrary, moiré interferometry is often regarded - even by some adherents - as a curiosity of the optics lab.
MacKenzie, P.M.
core   +1 more source

Mechanical properties and flexural behaviour evaluation of ultra-high-performance concrete using hybrid natural fibres

open access: yesAdvances in Civil and Architectural Engineering
This study aimed to elucidate the effects of incorporating basalt and banana fibres on the mechanical behaviour of ultra-high-performance concrete (UHPC).
Ananthakumar Ayyadurai   +4 more
doaj   +1 more source

Using fracture energy to characterize the hot mix asphalt cracking resistance based on the directtensile test

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2012
Cracking is currently one of the most common distresses in hot mix asphalt (HMA) pavements, often costing the highway agencies million of dollars in maintenance and rehabilitation activities.
Lubinda F. Walubita   +2 more
doaj   +1 more source

Zein‐Based Adhesives: Sustainable Extraction and Application in Bioadhesive Technologies

open access: yesAdvanced Engineering Materials, EarlyView.
Zein is extracted from corn gluten meal using a simple and scalable process with high yield (~90%). The resulting protein is applied in bioadhesives modified with Ca2+ and Fe3+ ions, exhibiting substrate‐dependent adhesion. The findings demonstrate competitive bonding performance and highlight the role of ionic interactions in tuning adhesion ...
Paula Bertolino Sanvezzo   +3 more
wiley   +1 more source

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