Shear strain, denoted by the symbol γ, is a measure of deformation in a material caused by shear stress. It describes the relative displacement of layers within the material parallel to a plane where the shear stress is applied. The formula for shear strain is given by: ​ Where: γ is the shear strain (unitless, […]
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Volumetric strain, also known as bulk strain or volume strain, is a measure of the change in volume of a material under the influence of stress or pressure. It is defined as the ratio of the change in volume (ΔV) to the original volume (V) of the material. The formula for volumetric strain (ϵvol​) in
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Normal strain, also known as axial strain, is a measure of the deformation or change in size of a material along the direction of the applied force or stress. It is defined as the ratio of the change in length (ΔL) to the original length (L) of the material. The formula for normal strain (ϵaxial​)
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The Poisson’s ratio is a material property that relates the lateral strain (strain perpendicular to the applied stress) to the axial strain (strain parallel to the applied stress) in a material when subjected to stress. It is denoted by the symbol ν (nu) and is a dimensionless quantity. The formula for Poisson’s ratio (ν) in
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Bulk stress, also known as volume stress or hydrostatic stress, is a measure of the pressure applied uniformly in all directions within a material. It is typically denoted by the symbol , σ (sigma) and is expressed in pascals (Pa) in the International System of Units (SI). The formula for bulk stress is given by:
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