WHAT IS THIS DOCUMENT ABOUT? :
MSC/NASTRAN’s Snap-Through Buckling capability is validated using a closed form
solution based on the large displacement theory and the nonlinear eigenvalue
extraction procedure for flat and “slightly” curved thin plates. Excellent correlation is
observed for displacements, stresses, and buckling loads at Snap-Through. The
capability is used to design and analyze the leading edge of a large commercial
airplane.