A numerical study for linear isotropic Cosserat elasticity with conformally invariant curvature

We investigate the numerical response of the linear Cosserat model with conformal curvature. In our simulations we compare the standard Cosserat model with a novel conformal Cosserat model in torsion and highlight its intriguing features. In all cases, free boundary conditions for the microrotations overline A are applied. The size‐effect response is markedly changed for the novel curvature expression. Our results suggest that the Cosserat couple modulus µ c > 0 remains a true material parameter independent of the sample size which is impossible for stronger, pointwise positive curvature expressions.