Tag
stability
2 posts
June 6, 2026
When stiffness, not strength, kills the panel
Thin panels go unstable long before they run out of strength, and the linear eigenvalue load FE hands you is an optimistic upper bound, not an answer. Notes on eigenvalue versus post-buckling, stiffener pitch, boundary conditions, and imperfection knockdowns.
July 9, 2024
A laminate doesn't fail the way a metal does
Metals give you one failure mode to chase. A laminate gives you several at once, and the one that loses the part is usually out of the plane your in-plane criterion can see.