Axially loaded structural member problem

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SUMMARY

The discussion centers on calculating the maximum axial force for a structural member made from a solid round bar of steel with a diameter of 50mm and a length of 6.0m. The maximum allowable axial stress is set at 175MPa, leading to a calculated maximum axial force of 343.5kN. Participants emphasize the importance of using the formula for stress, which is defined as Force per Area, and suggest considering the material's elongation properties to ensure compliance with the specified elongation limit of 0.14% of its length.

PREREQUISITES
  • Understanding of axial stress calculations
  • Familiarity with material properties of steel
  • Knowledge of cross-sectional area calculations for circular bars
  • Basic principles of elongation and deformation in materials
NEXT STEPS
  • Research the formula for calculating the cross-sectional area of a circular bar
  • Learn about the Young's modulus of steel and its implications for elongation
  • Explore the relationship between stress, strain, and material properties
  • Study the effects of axial loads on structural integrity
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Structural engineers, mechanical engineers, and students studying materials science or mechanics of materials will benefit from this discussion, particularly those focused on axial loading and stress analysis in structural components.

Pepsi24chevy
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Hey guys, I need setting up this problem. Here it is:
A structural member is fabricated from a solid round bar of steel with a diameter D=50mm. If the member is 6.0m long, determine the maximum axial force that can be applied if the axial stress is not to exceed 175MPa and the total elongation is not to exceed 0.14& of its length.

I know the answer is 343.5 KN but i am unsure of how to get it. Thanks
 
Physics news on Phys.org
Stress or Pressure [Pa] is Force per Area [N/m^2]
Did you try multiplying the stress by the Area?

Do you know how much the steel stretches per Pa?
 

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