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Three-Dimensional Elasticity                                                257



                   lifted by a pressure load of 1000 N/cm  from the inside surface of the top flat
                                                      2
                   portion. Compute the deformation and stresses in the bracket using the FEA.

                                                                All dimensions are in
                                                                   centimeters.
                        10.000
                              1.500
                           1.500
                                 R3.000
                                                         1.500

                                 8.000            1.500



                                                12.000

                                                                    1.500
                                                          8.000



               7.5  The following figure shows a lifting bracket made of structural steel with Young’s
                   modulus E = 200 GPa and Poisson’s ratio ν = 0.3. The base portion of the bracket
                   is 20 cm long, 12 cm wide, and 3 cm deep. The fillet radius at the base corners is
                   1.75 cm. Four through-holes each of radius 1 cm are located symmetrically both
                   length wise and width wise in the base, with the hole centers being 12 cm apart
                   by 6 cm apart. The upper portion of the base has a profile sketch shown below
                   and is 3 cm thick. Suppose that the bracket is fixed on the bottom, and lifted
                   by a bearing load of 20 kN through the bolt hole located in the upper portion.
                   Compute the deformation and stresses in the bracket using the FEA.

                                             R3.000
                                                     R1.500  All dimensions are in
                                                              centimeters.

                                     3.000





                                                            8.000
                                                         3.000

                                              6.000
                                                   6.000


               7.6  The following figure shows a bracket made of structural steel with Young’s
                   modulus E = 200 GPa and Poisson’s ratio ν = 0.3. The rectangular base of the
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