Compute shear modulus G = E/[2(1+ν)] from Young's modulus and Poisson's ratio for material parameter conversion and structural analysis.
剪切模量与弹性模量、泊松比的关系。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Relation among elastic constants | G = E / ( 2 · ( 1 + nu ) ), where E is Young's modulus and nu Poisson's ratio | Roark RJ, Young WC, Formulas for Stress and Strain, McGraw-Hill |
| Shear form of Hooke law | tau = G · gamma, where gamma is the shear strain | Timoshenko SP, Gere JM, Mechanics of Materials |
| Relation to the bulk modulus | K = E / ( 3 · ( 1 - 2·nu ) ); G and K together describe isotropic elasticity | Roark RJ, Young WC, Formulas for Stress and Strain |
| Units | Shear modulus shares the unit of Young's modulus, commonly GPa | ISO 80000-4:2019, Quantities and units - Part 4: Mechanics |