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A column ABCD supports several loads as shown in Figure 1. Segment AB has an area of 8,000mm2, segment BC has 2,000mm2, and segment CD has an area of 12,000mm2  Determine the axial (normal) stress in each segment and identify if the resulting stress is Tensile Stress or Compressive Stress.

 Mar 23, 2022
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AB has compressive force =   stress = (100 + 50 + 100 + 85 + 85) kN / 8000 mm2   

BC has force  100+50 + 100 - 85 - 85    - 200 - 200 = -150  kN       a tensile force  / stress

    stress = 150 kN / 2000mm2

 

CD has   force   100+50+100 - 85 - 85 + 200 + 2 00 = 480 kN compressive force      stress = 480 kN / 12000 mm2

 Mar 23, 2022

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