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How can be the Poissons ratio be expressed in terms of bulk modulus(K) and modulus of rigidity(G)?

How can be the Poissons ratio be expressed in terms of bulk modulus(K) and modulus of rigidity(G)? Correct Answer (3K – 2G) / (6K + 2G)

There are four elastic modulus relationships. the relation between Poissons ration, bulk modulus and modulus of rigidity is given as μ = (3K – 2G) / (6K + 2G).

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