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PROPERTIES OF MATERIALS

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the paper is about the mechanical properties of a material that determines its behavior when subjected to different loading conditions.

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Mechanical properties of a material determine the behavior of a given material when subjected to various loading conditions. These properties include hardness, brittleness, ductility, strength of the material, Young’s modulus and many others thus they are important in manufacturing and design. The mechanical properties of a material are those that affect the mechanical strength and ability of a material to be molded in various suitable shapes………………

Basically there are three types of stresses produced during materials subjection to various loading conditions they include; tensile stress, compressive stress and shear stress.
a) Tensile properties
Tensile strength is the ability of a material to support axial load (stress) without rupture. In tensile test both ends of a material are pulled by equal and opposite force simultaneously thus the material elongates and reduces in diameter as a result of stress and strain which changes the shape. Tensile test has mainly two curves………………….

b) Compression properties
Compressive test is done to determine the strength of the material which is subjected to equal and opposite compressive load. Compression helps in increase in cross section unlike the tensile test and……………….

c) Shear properties
Shear stress involves application of load parallel to the surface of material in opposite direction. Shear strain is given by the deflection of the element divided by orthogonal distance over which deflection occurred……………..

d) Hardness
This is the ability of the material to resist deformation or shape change due to external stress. There are various measures of hardness which includes;
i. Scratch hardness; the ability of a material to oppose the scratch of the outer surface layer as a result of external stress.
ii. Indentation hardness; the ability of the material to oppose the………………………….

e) Ductility
It is the property of a solid material which indicates how easily the material gets deformed or strain under tensile stress. It’s also categorized as the ability of the material to get stretched………………….