?For an isotropic substance, the moduli and Poisson’s ratio may be expressed in terms of
Chapter 15, Problem P15D.1(choose chapter or problem)
For an isotropic substance, the moduli and Poisson’s ratio may be expressed in terms of two parameters λ and μ called the Lamé constants:
\(E=\frac{\mu(3 \lambda+2 \mu)}{\lambda+\mu \quad K=\frac{3 \lambda+2 \mu}{3} \quad G=\mu\) \quad v_{\mathrm{P}}=\frac{\lambda}{2(\lambda+\mu)}\)
Use the Lamé constants to confirm the relations between G, K, and E given in eqn 15D.3.
Text Transcription:
E=mu(3 lambda+2 mu)/lambda+mu
K=3 lambda+2 mu/3
G=mu
v_P=lambda/2(lambda+mu)
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