How does the Bulk modulus of elasticity differ from Young's modulus?
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Young modulus is defined only for one axis of the substance.
Bulk modulus measure the change in volume when a pressure is applied, and Young modulus measures the change is length.
In bulk modulus amount of pressure applied is measured.
In Young modulus applied tensile stress (compression or stretch) is measured.
The relationship between Youngs modulus E, modulus of rigidity C, and bulk modulus K? E = 9KC / (3K + C).
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Bulk modulus is defined for a uniform compression where the pressure is applied from all directions uniformly. Young modulus is defined only for one axis of the substance. Bulk modulus measure the change in volume when a pressure is applied, and Young modulus measures the change is length.
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