Tensile Properties – Materials

Tensile Properties – Materials

Write a short note on tensile strength and compressive strength
Answer:

Tensile Strength:

It is determined by subjecting a rod, wire, or dumbbell-shaped specimen to a tensile loading. Tensile strength is defined, as the maximal stress the structure will withstand before rupture. Due to tensile loading, there is an alteration in the dimension of the material along the long axis of force before the material undergoes rupture or fracture. This length alteration is called as elongation.

• Tensile strength is determined by the equation of load and cross-sectional area (Kgf/cm2).

Compressive Strength:

Compressive strength or crushing strength is determined by subjecting a cylindrical specimen to a compressive load. The strength value is obtained from the cross-section area and force applied. Though the load is compressive, the failure is due to complex stresses. Common materials tested for compressive strength are restorative materials such as amalgam and cement, and auxiliary materials, i.e. investments, and impression materials.

• Compressive strength is determined by load divided by cross-sectional area, i.e. Kgf/cm2.