Fig. 4
Couple stress \(-m_{\theta z}\) vs \({\displaystyle \frac{R}{A}}\). Red: \({\displaystyle \frac{a}{A}}=1.2\). Green: \({\displaystyle \frac{a}{A}}=1.1\). Blue: \({\displaystyle \frac{a}{A}}=1.05\).
Fig. 4 | Scientific Reports
Couple stress \(-m_{\theta z}\) vs \({\displaystyle \frac{R}{A}}\). Red: \({\displaystyle \frac{a}{A}}=1.2\). Green: \({\displaystyle \frac{a}{A}}=1.1\). Blue: \({\displaystyle \frac{a}{A}}=1.05\).
