SAT, 14.12.2021 02:20 aprilkenedy12
a cross beam in a highway bridge experiences a stress of 14 ksi due to the dead weight of the bridge structure. when a fully loaded tractor-trailer crosses over the bridge, however, the stress in the beam increases to 45 ksi. the beam is fabricated from steel with an ultimate tensile strength of 76 ksi, a yield strength of 50 ksi, and an endurance limit of 38 ksi.
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a cross beam in a highway bridge experiences a stress of 14 ksi due to the dead weight of the bridge...
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