rain is defined as extension per unit length.
Strain = extension / original length
where,
ε = strain,
lo = the original length
e = extension = (l-lo), and
l = stretched length
Strain has no units because it is a ratio of lengths.
We can use the above definitions of stress and strain for forces causing tension or compression.
If we apply tensile force we have tensile stressand tensile strain
If we apply compressive force we have compressive stress and compressive strain.
The three types of strain are tensile strain, compressive strain, and shear strain. Tensile strain occurs when an object is stretched, compressive strain occurs when an object is compressed, and shear strain occurs when two parts of an object slide past each other in opposite directions.
When a spiral spring is stretched by a force, it experiences tensile strain. Tensile strain occurs when an object is stretched or pulled in opposite directions, causing the material to elongate. This type of strain is defined as the change in length per unit original length of the material.
Strain is dimensionless quantity because strain is the ratio of the same quantities like change in length/original length,,change in volume/original volume. e.g tensile strain=(change in length)/(original length)=m/m (S.I unit) so its a dimensionless quantity.
the most effective way to find out is through Westermann Tables....the cross section area of all the standard mechanical manufacturing parts is given..channels.. angles etc....once you know the area and the UTS(ultimate tensile strength) of MS(mild steel)...you know the ans.... help yourself.
The typical Poisson's ratio for brick material is around 0.18 to 0.25, depending on the specific type of brick and its composition. This value represents the ratio of transverse strain to axial strain when a brick is subjected to a tensile or compressive load.
tensile stress =force/area
The three types of strain are tensile strain, compressive strain, and shear strain. Tensile strain occurs when an object is stretched, compressive strain occurs when an object is compressed, and shear strain occurs when two parts of an object slide past each other in opposite directions.
Strain = Extension (m) / Original length (m)
When a spiral spring is stretched by a force, it experiences tensile strain. Tensile strain occurs when an object is stretched or pulled in opposite directions, causing the material to elongate. This type of strain is defined as the change in length per unit original length of the material.
Tensile modulus is a measure of a material's stiffness or resistance to deformation under tension. It quantifies how much a material will stretch or deform when subjected to a tensile force. It is typically expressed in units of force per unit area, such as Pascals.
Tensile strength is the ultimate capacity of the material to resist a tensile load regardless of deflection.Tensile modulus also known as Young's modulus, is a measure of the stiffness of an isotropic elastic material. It is defined as the ratio of the uniaxial stress over the uniaxial strain. It is determined from the slope of a stress-strain curve traced during tensile tests conducted on a sample of the material.
The elastic modulus, also called Young's modulus, is identical to the tensile modulus. It relates stress to strain when loaded in tension.
410 n/mm2
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Poisson's ratio is 0.3 for metals because the metals begin to get thinner the more they are stretched. It also relates a strain that is tensile to a strain that is compressive.Ê
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