Post-buckling analysis of corrugated panels in the presence of multiple interacting modes

Slenderness effects in thin-walled I-section struts susceptible to local–global mode interaction

“…Structural members made from slender plate elements entirely under compression, or in part, are well known to be susceptible to a variety of different elastic instability phenomena [1,2,3,4,5,6,7,8,9,10]. In recent works [11,12], a variational model representing an open and doubly-symmetric thin-walled I-section strut under axial compression, made from a linear elastic material, was introduced where both local or global buckling could occur first.…”

Mode interaction in thin-walled I-section struts with semi-rigid flange–web joints

“…The interactive buckling behaviour is usually found to be more unstable than when the modes are triggered individually. Other structural components, such as sandwich struts [9], stringer-stiffened and corrugated plates [4,10] and thin-walled beams under uniform bending [11], are also known to suffer from the interaction of global and local modes of instability.…”

Imperfection sensitivity of thin-walled I-section struts susceptible to cellular buckling

“…A variational model representing the nonlinear mode interaction between weak axis Euler buckling and the elastic local buckling of the flange plates was described. Other structural components such as sandwich struts [9,10,11], stringer-stiffened and corrugated plates [12,13,14,15,16,17,18] and thin-walled beams under uniform bending [19], are also known to suffer from the interaction of global and local modes of instability.…”