Experimental study of inelastic buckling strength and stiffness requirements for longitudinally stiffened panels

Compression tests of longitudinally stiffened plates undergoing distortional buckling

“…The minimum value of the inplane flexural rigidity of a longitudinal stiffener to prevent distortional buckling is provided. However, referring to the test results [1], longitudinally stiffened plates satisfying the limit of a longitudinal stiffener may undergo distortional buckling. If longitudinally stiffened flanges undergo distortional buckling, the strength equation based on local buckling cannot be used effectively.…”

“…When compressed or bent, the longitudinally stiffened plate may buckle in either local buckling mode or distortional buckling mode [1]. The critical buckling modes of the longitudinally stiffened plates shown in Fig.…”

“…Thickness of stiffened plate t f 1 Flange thickness of edge stiffener t f 2 Flange thickness of intermediate stiffener t w1 Web thickness of edge stiffener t w2…”

“…The provision for distortional buckling is also provided in NAS (AISI, 2001) [8]. The interaction between local buckling and distortional buckling of 0143 Design limiting strength (=F nld × A) R 1 Slenderness limit for yielding R 2 Slenderness limit for inelastic buckling t b…”

Buckling failure analysis of all-terrain crane telescopic boom section

“…The finite element methods of buckling include linear eigenvalue, nonlinear static, nonlinear transient and explicit dynamic [6][7][8][9][10][11][12][13][14][15]. Choi B H et al [16,17] using a nonlinear finite element method combined with the testing, analyzed the buckling strength and stiffness of longitudinally stiffened panels and the ultimate bending resistance of steel tub girders with top lateral bracing. Rikards R et al [18] using explicit dynamic method, analyzed the buckling strength and the critical load of the stiffened composite shells, and optimized the geometrical parametrical dimensions.…”