@article{paperid:1102726, author = {Barati, Morteza and Shahabian Moghadam, Farzad and Hassani, Behrooz}, title = {Free vibration analysis of free-form stiffened shells based on isogeometric method}, journal = {Engineering with Computers}, year = {2025}, month = {April}, issn = {0177-0667}, keywords = {Isogeometric analysis ; Stiffened shell ; Risener–Mindlin theory ; Higher order shear theory ; Free-form surface}, }