Aref K. L. Kzam Humberto B. Coda Geometrically nonlinear Hessian eigenmode decomposition for local stability analysis of thin-walled structures. 1627-1641 2020 36 Eng. Comput. 4 https://doi.org/10.1007/s00366-019-00785-2 db/journals/ewc/ewc36.html#KzamC20