Picture 1. Stack of Old Wooden Railway Sleepers Background Pattern stock photo
Source : (www.istockphoto.com)
Namely the strength of the wood, its ability to withstand the load on the wood. The mechanical property itself is the resistance of the material to the load it bears. Did you know that the forces that exist outside an object have a tendency to always change the shape and magnitude of the object :
A. Tensile Strength
There are two types of tensile strength, namely tensile strength perpendicular to the fiber direction and tensile strength parallel to the fiber direction. tensile strength perpendicular to the grain, the wood’s resistance to forces acting perpendicular to the fiber strength of the wood’s strength. The tensile strength perpendicular to the fiber direction can be found to be smaller than the tensile strength perpendicular to the fiber direction. While the greatest tensile strength in a wood is the tensile strength parallel to the direction of the fiber.
B. Compressive Strength
There are 2 kinds of compression, the compressive strength is perpendicular to the fiber direction and the compressive strength is parallel to the fiber direction. compression strength is greater parallel to the direction of the strength fiber than perpendicular strength.
Did you know that the strength of the force is perpendicular to the beam, the maximum stress is not yet clear at the load. However, it must be noted that the stress required by the wood is at the proportional limit of the wood to the pressure.
C. Shear Strength
Shear strength has a purpose, one of which is the strength in shear parallel to the fiber, namely to determine the ability to resist the internal core of the fiber with other fibers.
D. Flexural Strength
If you are going to make an engraving or furniture, of course, the flexible nature that is needed to design on wood. Because the flexibility will be tested by testing the flexibility by using the modulus of rupture (MOR) and modulus of elasticity (MOE).
The modulus of rupture (MOR) is the modulus in which the strength and hardness of the wood are directly proportional to the specific gravity of the wood. The presence of this extractive substance can affect the size of the wood cells and can also affect the type of wood.
The modulus of elasticity (MOE) is a measure of the ability of the wood itself to withstand some deformation of the flexible strength that occurs up to the proportion limit. The greater the pressure of the working wood, the higher the stress generated so that there can be greater changes in shape up to the proportion limit.
E. Violence
this is done with the emphasis on the wood. Determining a wood can be raised on the characteristics of a wood which is a measure of the hardness of the wood itself. You can determine this by testing the hardness of the pressure ball test or something else called the Brinnel test.