验证例题12.pdf

1Example 12 Title Cantilever beam with an in-plane vertical load at the free end.Description Find deflections of the cantilever beam subjected to an in-plane vertical load at the free end.Structural geometry and analysis model 2Model Analysis Type 2-D static analysis (X-Y plane)Unit System in,lbf Dimension Length 3.0 in Depth 0.6 in Thickness 0.1 in Element Plate element (Thick type)Material Modulus of elasticity E =10.7 106 psi Poissons ratio =0.3 Element Property Size a b =1.5 in 0.1 in Thickness t =0.1 in Boundary Condition Nodes 1,3,5 9 ;Constrain Dx and Dy.Load Case An in-plane vertical load,P=120 lbf is distributed over the free end nodes as noted below.Top and bottom nodes 2 and 4 =10 lbf Intermediate nodes 1721=20 lbf Example 12 3Results Y-displacements of the structure(Node 2)4Comparison of Results Unit:in Node 2 MSC/NASTRAN STAAD/PRO MIDAS/Gen Maximum y-0.05224233-0.05438000-0.05243585 References “MSC/NASTRAN Verification Problem Manual”,V.64,The MacNeal-Schwendler Corporation,1986,Problem No.V2408A.“STAAD-III/ISDS,Getting Started and Example Manual,Research Engineers,Inc.,1994.