Failures of Flexible Diaphragm Couplings of Power Take Off (PTO) Shafts of an Aircraft by Surface Discontinuity, Controlled by Stress Concentration or Stress Intensity Factor. IJEMM [Internet]. 2020 Jun. 25 [cited 2025 Nov. 13];5(2):29-3. Available from: https://www.deerhillpublishing.com/index.php/ijemm/article/view/113