Nonlinear Buckling Equilibrium Path Tracking Method Based Completely on Reduced-Order Model
A reduced-order model and path tracking technology, applied in design optimization/simulation, geometric CAD, etc., can solve the problem that the advantage of computational efficiency has not been fully exploited
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[0074] This example is for figure 2 The shown thin-walled curved plate is followed by an analytical method based entirely on a reduced-order model to follow the nonlinear buckling equilibrium path of the structure. The length of the straight side of the thin-walled curved plate is 508 mm, the radius of curvature corresponding to the curved side is 2540 mm, the radian is 0.1 rad, the plate thickness is 12.7 mm, the two straight sides are simply supported, and the two curved sides are free. The elastic modulus of the plate is 3102.75MPa, and the Poisson's ratio is 0.3. The geometric center of the upper surface of the thin-walled curved plate is subjected to a transverse concentrated point load.
[0075] In this embodiment, according to the length of the structural load-bearing response curve required by the user, the structural nonlinear buckling analysis of the curved plate is carried out, and the obtained displacement curve of the loading point along the load direction with ...
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