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Determination of relationships between density, amount of glue and mechanical properties of OSB
oriented strand board (OSB) density bending strength modulus of elasticity tensile strength perpendicular to the board surface amount of glue PMDI glues
2009/7/21
This paper deals with problems of the effect of changes in density and amount of glue on mechanical properties of OSB (oriented strand boards). Tests of mechanical properties were carried out on OSB...
Changes of Mechanical Properties of Wood under an Unstable State by Heating or Cooling
stress relaxation unstable state temperature history amount of fluidity
2009/3/6
In this paper stress relaxation of water-swollen wood was discussed with two conditions of temperature change, i.e. 1) specimens at 20°C were heated rapidly to 30-80°C, and 2) specimens at 30-80°C wer...
Mechanical Properties of Built-up Members Composed of Sugi Planks Fastened Together with Wood Pegs I
Sugi plank built-up beam wood peg edgewise bending test
2009/3/6
Built-up beams were made of two Sugi (Cryptomeria japonica D. Don) planks fastened together with wood pegs. In this study we investigated the edgewise bending properties of Sugi planks and 2ply built-...
Mechanical Properties of Wood in an Unstable State due to Temperature Changes, and an Analysis of the Relevant Mechanism II
wood block uniform elimination lignin hemicellulose
2009/3/6
In order to prepare wood specimens for subsequent measurements of mechanical properties, we examined the selective and uniform elimination of wood constituents from a 4 mm thick cross section of hino...
The most appropriate condition for evaluation of the mechanical properties of wood in an unstable state
stress relaxation unstable state bending strength quenching
2009/3/6
To study the optimum experiment conditions for determining the mechanical properties of wood which is in an unstable state due to temperature changes, the fluidity (1-Et/E0) in stress relaxation, the...
Mechanical Properties of Wood in an Unstable State due to Temperature Changes, and an Analysis of the Relevant Mechanism I.
quenching swollen wood variations of temperature stress relaxation fluidity
2009/3/6
To study mechanical properties of wood exposed to variations of temperature, in this study the swollen wood (water-swollen wood & ethylene glycol-swollen wood) was preheated at 30-180°C and quenched t...
Mechanical Properties of Wood in an Unstable State due to Temperature Changes, and Analysis of the Relevant Mechanism V.
quenching thermal expansion thermal decomposition destabilization
2009/3/6
In order to define the effects of thermal expansion and thermal decomposition on the destabilization of quenched wood, we measured the stress relaxation of steam-treated wood and oven-dried wood under...
Mechanical Properties of Wooden I-beams with Plantation Timber Materials in Hokkaido II.
wooden I-beam bending creep mechano-sorptive creep initial moisture content
2009/3/5
Bending creep properties of wooden I-beams with Todomatsu (Abies sachalinensis) lumber and Karamatsu (Larix kaempferi) plywood were examined by load-duration tests at different initial moisture conte...
Mechanical Properties of Wooden I-beams with Plantation Timber Materials in Hokkaido I.
wooden I-beam bending property shear property partial bearing property characteristic value
2009/3/4
Wooden I-beams with Todomatsu (Abies sachalinensis) lumber and Karamatsu (Larix kaempferi) plywood were developed to meet the demand for a stable and quality controlled supply of floor framing members...
Effects of Surface Coating Materials on The Physical and Mechanical Properties of Particleboard Used For Kitchen Cabinets and Surface Quality Properties: Part 1. Effects of Physical Properties
Surface Coating Materials The Physical and Mechanical Properties Particleboard Kitchen Cabinets Surface Quality Properties
2009/1/15
In this study, the effects of surface coating materials on the physical and mechanical properties of particleboard used for kitchen cabinets and surface quality properties were investigated. But, in t...