What are the properties of timber?
Timber will dry down to the “equilibrium moisture content” of the surrounding environment. Moisture content influences strength properties, stiffness, hardness, abrasion resistance, machining properties, thermal conductivity, dimensional stability, resistance to decay and nail holding ability.
What are the 12 properties of wood?
The mechanical properties of wood considered in this book are: (1) stiffness and elasticity, (2) tensile strength, (3) compressive or crushing strength, (4) shearing strength, (5) transverse or bending strength, (6) toughness, (7) hardness, (8) cleavability, (9) resilience.
What are five properties of timber?
A timber is said to be good based on the following characteristics :
- Durability.
- Strength.
- Permeability.
- Hardness.
- Toughness.
- Elasticity.
- Workability.
- Weight.
How many properties of lumber are there?
Lumber strength properties are assigned to five basic properties: fiber stress in bending (Fb), tension parallel-to-grain (Ft), horizontal shear (Fv), compression parallel-to-grain (Fc), and compression perpendicular-to-grain (Fc | ).
What are the three characteristics of wood?
It is highly versatile. It is relatively light in weight, yet has good strength in both tension and compression; and provides rigidity, toughness and insulating properties. It can be bent or twisted into special shapes, and it is readily worked, fastened and finished.
What are the physical and mechanical properties of timber?
Followings are the physical and mechanical properties of timber:
- Colour.
- Appearance.
- Hardness.
- Specific Gravity.
- Moisture Content.
- Grain.
- Shrinkage and Swelling.
- Strength.
How do you describe the texture of wood?
Texture: In the most basic terms, the wood texture describes how a wood feels. Given an equal amount of sanding and smoothing operations, different woods will feel smoother than others. Diffuse porous woods with small pores tend to be the most evenly textured.
What is the texture of wood?
The texture of the wood is determined by the relative size of the longitudinal cells. Wood species with large cells are said to have a coarse texture, while those with smaller cells have a fine texture.
What is the unique property of wood?
Wood is a very light material, its specific gravity being always less than 1 (that of water). It is interesting to note, however, that if the wood tissue is compacted in such a way that not even a few pores are left in it, then its specific gravity will approach 1.5 (i.e., it will become heavier than water).
What property of wood makes ideal furniture?
The mechanical properties of wood are its ability to resist applied or external forces. It means that any outside effect of a given piece of material which tends to deform by an external force. It is the property of wood that make it suitable for the use of building materials and as furniture elements.
What are the three properties of wood?
The main physical properties of wood include: color, luster, texture, macro-structure, odor, moisture, shrinkage, internal stresses, swelling, cracking, warping, density, sound – electro – thermal conductivity. Сolor, shine, texture and macrostructure determine the appearance of wood.