Question
A stretched wire made of a material with Young's modulus $ Y = 2 \times 10^{11} \, \text{N/m}^{2} $ has Poisson's ratio $ 0.25 $. The lateral strain $ \varepsilon_1 = 10^{-3} $. What is the elastic energy density of the wire?
A stretched wire made of a material with Young's modulus $ Y = 2 \times 10^{11} \, \text{N/m}^{2} $ has Poisson's ratio $ 0.25 $. The lateral strain $ \varepsilon_1 = 10^{-3} $. What is the elastic energy density of the wire?