DLUBAL Plate Buckling 8.24.02

DLUBAL Plate Buckling Overview

Designs are performed in iterative steps by eigenvalue calculation of the ideal buckling values for the individual stress conditions as well as of the buckling value for the simultaneous effects of all stress components.

The Dlubal PLATE-BUCKLING analysis is based on the method of reduced stresses, comparing the acting stresses with a limit stress condition reduced from the yield condition of von Mises for each buckling panel. The design is based on a single global slenderness ratio determined by the entire stress field. Therefore, the analysis of single loading and subsequent merging using interaction criterion is omitted.

Features of DLUBAL Plate Buckling

Import of all relevant internal forces from RFEM/RSTAB by selecting numbers of members and buckling panels with determination of governing boundary stresses
Summary of stresses in load cases with determination of governing load
Separate materials for stiffener and plate
Import of stiffeners from an extensive library (flat plate and bulb flat steel, angle, T-section, channel, and trapezoidal sheeting)
Determination of effective widths according to EN 1993-1-5 (Table 4.1 or 4.2) or DIN 18800, Part 3, Eq. (4)
Optional calculation of critical local buckling stresses by analytical formulas of annexes A.1, A.2, A.3 of EC 3 or by means of FEA calculation
Designs (stress, deformation, torsional buckling) of longitudinal and transverse stiffeners
Optional consideration of buckling effects according to DIN 18800, Part 3, Eq. (13)
Photo-realistic representation (3D rendering) of buckling panel including stiffeners, stress conditions, and buckling modes with animation
Documentation of all input data and results in a verifiable printout report