ENGR 220 Section 4.6. Thermal Stress Pillow Block Bearings.

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Presentation transcript:

ENGR 220 Section 4.6

Thermal Stress

Pillow Block Bearings

Expansion Loop in Steam Piping

Expansion Joints

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The A-36 steel bar is constrained to fit between two fixed supports when T 1 = 60ºF. If the temperature is raised to T 2 =120ºF determine the average thermal stress developed in the bar.

Lecture Example: The 40-ft long A-36 steel rails on a train tack are laid with a small gap to allow for thermal expansion. Determine the gap required so that the rails touch one another when the temperature is increased from -20°F to 90°F. What would the force on the rails be if the temperature were to rise to 110°F. The cross-sectional area of each rail is 5.1 in 2.

Determine the force exerted on the walls when temperature increases from 10  C to 20  C