property of a material???

Question

1, What property of a material does the TENSILE MODULUS define?

2, What units are used for TENSILE MODULUS?

3, What is the cross sectional area of a specimen whose width is 6mm and breadth is 1.8mm?

how did you do it?

Answer 1

To describe elastic properties of linear objects like wires, rods, or columns which are stretched or compressed, a convenient parameter is the ratio of the stress to the strain, a parameter called the Young's modulus (tensile modulus) of the material. Young's modulus can be used to predict the elongation or compression of an object as long as the stress is less than the yield strength of the material. A chart is at the first site below.

Young's Modulus (Tensile Modulus)
Young's modulus or Tensile modulus can be expressed as

E = stress / strain = (F / A) / (dL / L) (3)

where

E = Young's modulus (N/m2) (lb/in2, psi)

Units
The SI unit of modulus of elasticity (E, or less commonly Y) is the pascal. Given the large values typical of many common materials, figures are usually quoted in megapascals or gigapascals. Some use an alternative unit form, kN/mm², which gives the same numeric value as gigapascals.

The modulus of elasticity can also be measured in other units of pressure, for example pounds per square inch.

Can't do the last part. Don't know how. Hope the two sites below help you figure out the 3d part of your question.

Answer 2

The property is called Modulus of Elasticity (Young's Modulus) and is the ratio of stress over strain.

The units are those of stress, because strain is dimensionless. Thus Mod of Elasticity can be written in lb per sq inch or Newtons per sq cm similar to pressure.

Area = 6 x 1.8 = 10.8 sqmm