2.2. Axial (Longitudinal) Stress

Try these first

1. 1.

   What is the formula for axial stress in a pressure vessel?

   Hint

   Think about what variables are involved regarding pressure and dimensions.

2. 2.

   What does the term 'thin-walled cylinder' mean?

   Hint

   Consider using a ratio to compare thickness and radius.

3. 3.

   What is the primary function of axial stress in pressure vessels?

   • To determine material thickness
   • To assess structural integrity
   • To calculate thermal expansion

   Hint

   Think about why engineers analyze stress in structural components.

4. 4.

   True or False: Axial stress is only significant in thick-walled pressure vessels.

   • True
   • False

   Hint

   Recall the conditions where both stress types are relevant.

5. 5.

   A pressure vessel of radius 8 cm and wall thickness 0.4 cm is tested at an internal pressure of 600 kPa. Calculate both axial and hoop stresses. Discuss the implications of these stresses in design.

   Hint

   Use both formulas and consider material limits.

6. 6.

   Describe how axial stress calculations differ between thin-walled and thick-walled pressure vessels, providing an example for each.

   Hint

   Consider the formulas for each type of vessel.