- SYSTEM AND METHOD FOR PREDICTION OF SNAP-THROUGH BUCKLING OF FORMED STEEL SHEET PANELS

摘要

Dent resistance of the roof panels 12 and 30, including the curvatures R1 and R2 of the roof panels 12 and 30, the thickness of the roof panels 12 and 30, the type of steel, and the effect of the loop bow arrangement and A simplified tool is provided for simultaneously predicting snap-through buckling resistance. In one embodiment, a method is provided for predicting the snap-through buckling resistance of sheet metal panel 12 to working load 26 under local loading conditions, wherein sheet metal panel 12 has certain geometries. The method comprises: identifying first and second major curvature radii (R1, R2) of panel 12; Identifying a thickness t of panel 12; Identifying a distance L2 of the panel portion between the structural supports 32; Determining a mathematical function that determines a load displacement curve for snap-through buckling; And determining the likelihood that panel 12 exhibits snap-through buckling characteristics under various local acting loads 26 by entering parameters.