Question 14.6: Design a cantilever beam of length 400 mm and width 25 mm to...
Design a cantilever beam of length 400 mm and width 25 mm to carry a tip lateral load of 5 N. Restrict the tip deflection within 1.0 mm. Use unidirectional carbon/ epoxy prepreg with the following material data:
E_1=130 \ GPa,E_2=6.5 \ GPa,G_{12}=5.0 \ GPa,ν _{12}=0.25
Each prepreg ply is of 0.25 mm thickness.
Consider the following alternatives: (1) solid rectangular cross section (plies normal to the loading direction), (2) solid rectangular cross section (plies parallel to the loading direction), and (3) box-section.
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