The elastic behaviour of multi-stiffened plates under uniform compression

A point receptance array approach for stiffened panel structures

“…Watson et al [16] applied the method of Lagrangian multipliers for buckling and vibration analysis of stiffened panels with clamped ends. Bedair [17][18][19][20] applied the sequential quadratic programming method to study the stability of a beam stiffened plate subjected to a set of in-plane compressive force and bending moment, and obtained the effects of stiffener shape and spacing on plate buckling modes. Yuan and Dawe [21] developed a B-spline finite strip method for vibration and buckling analysis of stiffened sandwich plates.…”

A new metamodel for reinforced panels under compressive loads and its application to the fuselage conception

“…Non-linearity in the post-buckling thin-walled panels is discussed by Alinia et al (2009) and Stamatelos et al (2011). Analytical results in linear buckling of multi-stiffened panels under compression are presented by Bedair (1997), and Kolakowski and Teter (2000).…”

Closure to discussion by O. Bedair of “Semi-analytical buckling strength analysis of plates with arbitrary stiffener arrangements”

“…Most of them are on elastic buckling (eigenvalue) analysis as such, and some of them are on such analysis for plates with various stiffening configurations parallel to the plate boundaries. Work by the discusser, for instance [1,2], are examples of such studies. Studies of plates with inclined stiffeners are very limited (see also item (1) above).…”

“…However, we appreciate this information as vibration and buckling analysis have several aspects in common. (2) The discusser states that the authors have overlooked the literature on the subject. The authors can appreciate that there are many papers on semi-analytical methods.…”

“…Considering that the elastic buckling Nevertheless, this is not to say that separate comparisons of the computational efficiency of the buckling analysis part with more rigorous and therefore, most likely, less computationally efficient methods, are not of interest. Such comparisons, such as for instance with a buckling analysis method by the discusser [1,2], poses a practical problem since sufficient details in conjunction with the computational time are normally missing in the papers. Therefore, a comparative study of the type suggested by the discusser, would probably require a paper with that as one of the major objectives.…”